Vulnerability-Lookup

ubuntu-cve-2026-41284

Vulnerability from osv_ubuntu

Published

2026-05-12 16:16

Modified

2026-06-18 20:07

Summary

Details

Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-41284	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-41284	REPORT
	https://ubuntu.com/security/notices/USN-8417-1	ADVISORY
	https://ubuntu.com/security/notices/USN-8450-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm8"
          },
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm8"
          },
          {
            "binary_name": "tomcat9",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm8"
          },
          {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm8"
          },
          {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm8"
          },
          {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm8"
          },
          {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm8"
          },
          {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.16-3ubuntu0.18.04.2+esm8?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.16-3ubuntu0.18.04.2+esm8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.16-3~18.04.1",
        "9.0.16-3ubuntu0.18.04.1",
        "9.0.16-3ubuntu0.18.04.2",
        "9.0.16-3ubuntu0.18.04.2+esm1",
        "9.0.16-3ubuntu0.18.04.2+esm2",
        "9.0.16-3ubuntu0.18.04.2+esm3",
        "9.0.16-3ubuntu0.18.04.2+esm4",
        "9.0.16-3ubuntu0.18.04.2+esm5",
        "9.0.16-3ubuntu0.18.04.2+esm6",
        "9.0.16-3ubuntu0.18.04.2+esm7"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.31-1ubuntu0.9+esm3"
          },
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.31-1ubuntu0.9+esm3"
          },
          {
            "binary_name": "tomcat9",
            "binary_version": "9.0.31-1ubuntu0.9+esm3"
          },
          {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.31-1ubuntu0.9+esm3"
          },
          {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.31-1ubuntu0.9+esm3"
          },
          {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.31-1ubuntu0.9+esm3"
          },
          {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.31-1ubuntu0.9+esm3"
          },
          {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.31-1ubuntu0.9+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.31-1ubuntu0.9+esm3?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.31-1ubuntu0.9+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.24-1",
        "9.0.27-1",
        "9.0.31-1",
        "9.0.31-1ubuntu0.1",
        "9.0.31-1ubuntu0.2",
        "9.0.31-1ubuntu0.3",
        "9.0.31-1ubuntu0.4",
        "9.0.31-1ubuntu0.5",
        "9.0.31-1ubuntu0.6",
        "9.0.31-1ubuntu0.7",
        "9.0.31-1ubuntu0.8",
        "9.0.31-1ubuntu0.9",
        "9.0.31-1ubuntu0.9+esm1",
        "9.0.31-1ubuntu0.9+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "tomcat9",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.58-1ubuntu0.2+esm4?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.58-1ubuntu0.2+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.43-3",
        "9.0.54-1",
        "9.0.55-1",
        "9.0.58-1",
        "9.0.58-1ubuntu0.1",
        "9.0.58-1ubuntu0.1+esm1",
        "9.0.58-1ubuntu0.1+esm2",
        "9.0.58-1ubuntu0.1+esm3",
        "9.0.58-1ubuntu0.1+esm4",
        "9.0.58-1ubuntu0.2",
        "9.0.58-1ubuntu0.2+esm1",
        "9.0.58-1ubuntu0.2+esm2",
        "9.0.58-1ubuntu0.2+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat10-embed-java",
            "binary_version": "10.1.16-1ubuntu0.1~esm4"
          },
          {
            "binary_name": "libtomcat10-java",
            "binary_version": "10.1.16-1ubuntu0.1~esm4"
          },
          {
            "binary_name": "tomcat10",
            "binary_version": "10.1.16-1ubuntu0.1~esm4"
          },
          {
            "binary_name": "tomcat10-admin",
            "binary_version": "10.1.16-1ubuntu0.1~esm4"
          },
          {
            "binary_name": "tomcat10-common",
            "binary_version": "10.1.16-1ubuntu0.1~esm4"
          },
          {
            "binary_name": "tomcat10-docs",
            "binary_version": "10.1.16-1ubuntu0.1~esm4"
          },
          {
            "binary_name": "tomcat10-examples",
            "binary_version": "10.1.16-1ubuntu0.1~esm4"
          },
          {
            "binary_name": "tomcat10-user",
            "binary_version": "10.1.16-1ubuntu0.1~esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "tomcat10",
        "purl": "pkg:deb/ubuntu/tomcat10@10.1.16-1ubuntu0.1~esm4?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.1.16-1ubuntu0.1~esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.1.10-1",
        "10.1.14-1",
        "10.1.15-1",
        "10.1.16-1",
        "10.1.16-1ubuntu0.1~esm1",
        "10.1.16-1ubuntu0.1~esm2",
        "10.1.16-1ubuntu0.1~esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.70-2ubuntu0.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.70-2ubuntu0.1+esm3?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.70-2ubuntu0.1+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.70-1ubuntu1",
        "9.0.70-2",
        "9.0.70-2ubuntu0.1",
        "9.0.70-2ubuntu0.1+esm1",
        "9.0.70-2ubuntu0.1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtomcat10-embed-java",
            "binary_version": "10.1.40-1ubuntu1.25.10.1"
          },
          {
            "binary_name": "libtomcat10-java",
            "binary_version": "10.1.40-1ubuntu1.25.10.1"
          },
          {
            "binary_name": "tomcat10",
            "binary_version": "10.1.40-1ubuntu1.25.10.1"
          },
          {
            "binary_name": "tomcat10-admin",
            "binary_version": "10.1.40-1ubuntu1.25.10.1"
          },
          {
            "binary_name": "tomcat10-common",
            "binary_version": "10.1.40-1ubuntu1.25.10.1"
          },
          {
            "binary_name": "tomcat10-docs",
            "binary_version": "10.1.40-1ubuntu1.25.10.1"
          },
          {
            "binary_name": "tomcat10-examples",
            "binary_version": "10.1.40-1ubuntu1.25.10.1"
          },
          {
            "binary_name": "tomcat10-user",
            "binary_version": "10.1.40-1ubuntu1.25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "tomcat10",
        "purl": "pkg:deb/ubuntu/tomcat10@10.1.40-1ubuntu1.25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.1.40-1ubuntu1.25.10.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.1.35-1",
        "10.1.40-1",
        "10.1.40-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtomcat11-embed-java",
            "binary_version": "11.0.6-1"
          },
          {
            "binary_name": "libtomcat11-java",
            "binary_version": "11.0.6-1"
          },
          {
            "binary_name": "tomcat11",
            "binary_version": "11.0.6-1"
          },
          {
            "binary_name": "tomcat11-admin",
            "binary_version": "11.0.6-1"
          },
          {
            "binary_name": "tomcat11-common",
            "binary_version": "11.0.6-1"
          },
          {
            "binary_name": "tomcat11-docs",
            "binary_version": "11.0.6-1"
          },
          {
            "binary_name": "tomcat11-examples",
            "binary_version": "11.0.6-1"
          },
          {
            "binary_name": "tomcat11-user",
            "binary_version": "11.0.6-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "tomcat11",
        "purl": "pkg:deb/ubuntu/tomcat11@11.0.6-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "11.0.6-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.95-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.95-1ubuntu1.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.95-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.70-2ubuntu1.1",
        "9.0.70-2ubuntu2",
        "9.0.70-2ubuntu3",
        "9.0.95-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtomcat10-embed-java",
            "binary_version": "10.1.40-1ubuntu1.26.04.1"
          },
          {
            "binary_name": "libtomcat10-java",
            "binary_version": "10.1.40-1ubuntu1.26.04.1"
          },
          {
            "binary_name": "tomcat10",
            "binary_version": "10.1.40-1ubuntu1.26.04.1"
          },
          {
            "binary_name": "tomcat10-admin",
            "binary_version": "10.1.40-1ubuntu1.26.04.1"
          },
          {
            "binary_name": "tomcat10-common",
            "binary_version": "10.1.40-1ubuntu1.26.04.1"
          },
          {
            "binary_name": "tomcat10-docs",
            "binary_version": "10.1.40-1ubuntu1.26.04.1"
          },
          {
            "binary_name": "tomcat10-examples",
            "binary_version": "10.1.40-1ubuntu1.26.04.1"
          },
          {
            "binary_name": "tomcat10-user",
            "binary_version": "10.1.40-1ubuntu1.26.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "tomcat10",
        "purl": "pkg:deb/ubuntu/tomcat10@10.1.40-1ubuntu1.26.04.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.1.40-1ubuntu1.26.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.1.40-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.115-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.115-1ubuntu0.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.115-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.95-1ubuntu1",
        "9.0.111-1",
        "9.0.115-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat11-embed-java",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libtomcat11-java",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-admin",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-common",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-docs",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-examples",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-user",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "tomcat11",
        "purl": "pkg:deb/ubuntu/tomcat11@11.0.18-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "11.0.18-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "11.0.6-1",
        "11.0.11-1",
        "11.0.15-1",
        "11.0.18-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.",
  "id": "UBUNTU-CVE-2026-41284",
  "modified": "2026-06-18T20:07:38Z",
  "published": "2026-05-12T16:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-41284"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-41284"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8417-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8450-1"
    }
  ],
  "related": [
    "USN-8417-1",
    "USN-8450-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-41284"
  ]
}

CVE-2026-41284 (GCVE-0-2026-41284)

Vulnerability from cvelistv5 – Published: 2026-05-12 15:14 – Updated: 2026-05-13 15:57

Title

Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/2nvqjr7ovjmvx2vbh…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.21 (semver) Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 10.0.0-M1 , ≤ 10.0.27 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 4.0 , ≤ 7.0.109 (semver)

Credits

Dariusz Gońda

Show details on NVD website

JSON

To clipboard

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usn-8417-1

Vulnerability from osv_ubuntu

Published

2026-06-10 06:44

Modified

2026-06-11 08:29

Summary

tomcat9, tomcat10 vulnerabilities

Details

It was discovered that Tomcat did not properly limit the size of WebDAV LOCK and PROPFIND request bodies. A remote attacker could use this issue to cause Tomcat to consume excessive memory, resulting in a denial of service. (CVE-2026-41284)

It was discovered that Tomcat incorrectly validated HTTP/2 header fields. A remote attacker could use this issue to cause Tomcat to crash or possibly execute arbitrary code. (CVE-2026-41293)

It was discovered that Tomcat did not properly clear HTTP authentication headers during WebSocket connection upgrades and redirects. A remote attacker could use this issue to obtain sensitive credentials. (CVE-2026-42498)

It was discovered that Tomcat incorrectly handled digest authentication. A remote attacker could possibly use this issue to bypass authentication restrictions. (CVE-2026-43512)

It was discovered that Tomcat incorrectly handled case sensitivity in LockOutRealm. A remote attacker could possibly use this issue to bypass account lockout protections and obtain sensitive information. (CVE-2026-43513)

It was discovered that Tomcat incorrectly handled authorization when multiple method constraints defined the same HTTP method. A remote attacker could possibly use this issue to bypass authorization restrictions. (CVE-2026-43515)

References

URL

Type

	https://ubuntu.com/security/notices/USN-8417-1	ADVISORY
	https://ubuntu.com/security/CVE-2026-41284	REPORT
	https://ubuntu.com/security/CVE-2026-41293	REPORT
	https://ubuntu.com/security/CVE-2026-42498	REPORT
	https://ubuntu.com/security/CVE-2026-43512	REPORT
	https://ubuntu.com/security/CVE-2026-43513	REPORT
	https://ubuntu.com/security/CVE-2026-43515	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-41284",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41293",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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                },
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                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43512",
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                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43513",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
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                  "type": "Ubuntu"
                }
              ]
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              "id": "CVE-2026-43515",
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        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
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            "binary_name": "libtomcat9-embed-java",
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          }
        ]
      },
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        "ecosystem": "Ubuntu:Pro:20.04:LTS",
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        "9.0.27-1",
        "9.0.31-1",
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        "9.0.31-1ubuntu0.3",
        "9.0.31-1ubuntu0.4",
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                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
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              ]
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              "id": "CVE-2026-43512",
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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                },
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                  "score": "medium",
                  "type": "Ubuntu"
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              "id": "CVE-2026-43513",
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        "binaries": [
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            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.58-1ubuntu0.2+esm4"
          },
          {
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          {
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          {
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          {
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                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-42498",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43512",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43513",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43515",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
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          "ecosystem": "Ubuntu:Pro:24.04:LTS"
        }
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        "10.1.16-1ubuntu0.1~esm3"
      ]
    },
    {
      "database_specific": {
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            {
              "id": "CVE-2026-41284",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
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            {
              "id": "CVE-2026-41293",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-42498",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43512",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43513",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
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                }
              ]
            },
            {
              "id": "CVE-2026-43515",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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            {
              "id": "CVE-2026-41293",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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              "id": "CVE-2026-42498",
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
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                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
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            {
              "id": "CVE-2026-43512",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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                },
                {
                  "score": "medium",
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              ]
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            {
              "id": "CVE-2026-43513",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
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                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43515",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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                {
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      "package": {
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          "cves": [
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              "id": "CVE-2026-41284",
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41293",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-42498",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43512",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43513",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43515",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
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        "binaries": [
          {
            "binary_name": "libtomcat9-java",
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        ]
      },
      "package": {
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          "cves": [
            {
              "id": "CVE-2026-41284",
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                {
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41293",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-42498",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43512",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43513",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43515",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
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        "binaries": [
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          {
            "binary_name": "libtomcat10-java",
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          },
          {
            "binary_name": "tomcat10",
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          },
          {
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      "package": {
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    {
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        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-41284",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41293",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-42498",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43512",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43513",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43515",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.115-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.115-1ubuntu0.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.115-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.95-1ubuntu1",
        "9.0.111-1",
        "9.0.115-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Tomcat did not properly limit the size of\nWebDAV LOCK and PROPFIND request bodies. A remote attacker could\nuse this issue to cause Tomcat to consume excessive memory,\nresulting in a denial of service. (CVE-2026-41284)\n\nIt was discovered that Tomcat incorrectly validated HTTP/2 header\nfields. A remote attacker could use this issue to cause Tomcat to\ncrash or possibly execute arbitrary code. (CVE-2026-41293)\n\nIt was discovered that Tomcat did not properly clear HTTP\nauthentication headers during WebSocket connection upgrades and\nredirects. A remote attacker could use this issue to obtain\nsensitive credentials. (CVE-2026-42498)\n\nIt was discovered that Tomcat incorrectly handled digest\nauthentication. A remote attacker could possibly use this issue to\nbypass authentication restrictions. (CVE-2026-43512)\n\nIt was discovered that Tomcat incorrectly handled case sensitivity\nin LockOutRealm. A remote attacker could possibly use this issue to\nbypass account lockout protections and obtain sensitive information.\n(CVE-2026-43513)\n\nIt was discovered that Tomcat incorrectly handled authorization\nwhen multiple method constraints defined the same HTTP method. A\nremote attacker could possibly use this issue to bypass\nauthorization restrictions. (CVE-2026-43515)",
  "id": "USN-8417-1",
  "modified": "2026-06-11T08:29:19Z",
  "published": "2026-06-10T06:44:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8417-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-41284"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-41293"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-42498"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43512"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43513"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43515"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "tomcat9, tomcat10 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-41284",
    "UBUNTU-CVE-2026-41293",
    "UBUNTU-CVE-2026-42498",
    "UBUNTU-CVE-2026-43512",
    "UBUNTU-CVE-2026-43513",
    "UBUNTU-CVE-2026-43515"
  ]
}

usn-8450-1

Vulnerability from osv_ubuntu

Published

2026-06-18 15:56

Modified

2026-06-18 15:56

Summary

tomcat11 vulnerabilities

Details

It was discovered that Tomcat did not properly limit the size of WebDAV LOCK and PROPFIND request bodies. A remote attacker could possibly use this issue to cause Tomcat to consume excessive memory, resulting in a denial of service. (CVE-2026-41284)

It was discovered that Tomcat incorrectly validated HTTP/2 header fields. A remote attacker could use this issue to cause Tomcat to crash or possibly execute arbitrary code. (CVE-2026-41293)

It was discovered that Tomcat did not properly clear HTTP authentication headers during WebSocket connection upgrades and redirects. A remote attacker could possibly use this issue to obtain sensitive credentials. (CVE-2026-42498)

References

URL

Type

	https://ubuntu.com/security/notices/USN-8450-1	ADVISORY
	https://ubuntu.com/security/CVE-2026-41284	REPORT
	https://ubuntu.com/security/CVE-2026-41293	REPORT
	https://ubuntu.com/security/CVE-2026-42498	REPORT
	https://ubuntu.com/security/CVE-2026-43515	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-41284",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41293",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-42498",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43515",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat11-embed-java",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libtomcat11-java",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-admin",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-common",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-docs",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-examples",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "tomcat11-user",
            "binary_version": "11.0.18-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "tomcat11",
        "purl": "pkg:deb/ubuntu/tomcat11@11.0.18-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "11.0.18-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "11.0.6-1",
        "11.0.11-1",
        "11.0.15-1",
        "11.0.18-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Tomcat did not properly limit the size of\nWebDAV LOCK and PROPFIND request bodies. A remote attacker could\npossibly use this issue to cause Tomcat to consume excessive memory,\nresulting in a denial of service. (CVE-2026-41284)\n\nIt was discovered that Tomcat incorrectly validated HTTP/2 header\nfields. A remote attacker could use this issue to cause Tomcat to\ncrash or possibly execute arbitrary code. (CVE-2026-41293)\n\nIt was discovered that Tomcat did not properly clear HTTP\nauthentication headers during WebSocket connection upgrades and\nredirects. A remote attacker could possibly use this issue to obtain\nsensitive credentials. (CVE-2026-42498)\n\nIt was discovered that Tomcat incorrectly handled authorization\nwhen multiple method constraints defined the same HTTP method. A\nremote attacker could possibly use this issue to bypass\nauthorization restrictions. (CVE-2026-43515)",
  "id": "USN-8450-1",
  "modified": "2026-06-18T15:56:22Z",
  "published": "2026-06-18T15:56:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8450-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-41284"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-41293"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-42498"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43515"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "tomcat11 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-41284",
    "UBUNTU-CVE-2026-41293",
    "UBUNTU-CVE-2026-42498",
    "UBUNTU-CVE-2026-43515"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2026-41284

Vulnerability from osv_ubuntu

CVE-2026-41284 (GCVE-0-2026-41284)

usn-8417-1

Vulnerability from osv_ubuntu

usn-8450-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature