usn-8333-1
Vulnerability from osv_ubuntu
Published
2026-05-28 12:01
Modified
2026-06-30 15:55
Summary
openjdk-21-crac vulnerabilities
Details

Thomas Beckers discovered that the JAXP component of CRaC JDK 21 did not correctly authenticate certain APIs. A remote unauthenticated attacker could possibly use this issue to gain unauthorized access to sensitive information. (CVE-2026-22016)

It was discovered that the Networking component of CRaC JDK 21 did not correctly authenticate certain APIs. A remote unauthenticated attacker could possibly use this issue to cause a denial of service. (CVE-2026-34282)

It was discovered that the JSSE component of CRaC JDK 21 did not correctly authenticate certain APIs. A remote unauthenticated attacker could possibly use this issue to cause a denial of service. (CVE-2026-22021)

It was discovered that the JGSS component of CRaC JDK 21 did not correctly authenticate certain APIs. A remote attacker could possibly use this issue to obtain sensitive information.(CVE-2026-22013)

It was discovered that the 2D component of CRaC JDK 21 did not correctly handle certain integer arithmetic. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to leak sensitive information. (CVE-2026-23865)

It was discovered that the Libraries component of CRaC JDK 21 did not correctly authenticate certain APIs. A remote unauthenticated attacker could possibly use this issue to cause a denial of service. (CVE-2026-22018)

Ken Pyle discovered that the Security component of CRaC JDK 21 did not correctly authenticate certain APIs. A local attacker could possibly use this issue to leak sensitive information. (CVE-2026-22007, CVE-2026-34268)

In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Please see the following for more information: https://openjdk.org/groups/vulnerability/advisories/2026-04-21

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-22007",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-22013",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-22016",
              "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": "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-2026-22018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-22021",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-23865",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34268",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34282",
              "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": "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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "openjdk-21-crac-demo",
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "openjdk-21-crac-jdk",
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "openjdk-21-crac-jdk-headless",
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "openjdk-21-crac-jre",
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "openjdk-21-crac-jre-headless",
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "openjdk-21-crac-jre-zero",
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "openjdk-21-crac-source",
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "openjdk-21-crac-testsupport",
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "openjdk-21-crac",
        "purl": "pkg:deb/ubuntu/openjdk-21-crac@21.0.11+10-0ubuntu1~25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "21.0.11+10-0ubuntu1~25.10.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "21.0.6+7-0ubuntu1",
        "21.0.7+6.1-0ubuntu1",
        "21.0.8+9-0ubuntu1",
        "21.0.9+10-0ubuntu1~25.10",
        "21.0.10+7-0ubuntu1~25.10"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-22007",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-22013",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-22016",
              "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": "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-2026-22018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-22021",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-23865",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34268",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34282",
              "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": "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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "openjdk-21-crac-demo",
            "binary_version": "21.0.11+10-0ubuntu1~26.04.1"
          },
          {
            "binary_name": "openjdk-21-crac-jdk",
            "binary_version": "21.0.11+10-0ubuntu1~26.04.1"
          },
          {
            "binary_name": "openjdk-21-crac-jdk-headless",
            "binary_version": "21.0.11+10-0ubuntu1~26.04.1"
          },
          {
            "binary_name": "openjdk-21-crac-jre",
            "binary_version": "21.0.11+10-0ubuntu1~26.04.1"
          },
          {
            "binary_name": "openjdk-21-crac-jre-headless",
            "binary_version": "21.0.11+10-0ubuntu1~26.04.1"
          },
          {
            "binary_name": "openjdk-21-crac-jre-zero",
            "binary_version": "21.0.11+10-0ubuntu1~26.04.1"
          },
          {
            "binary_name": "openjdk-21-crac-source",
            "binary_version": "21.0.11+10-0ubuntu1~26.04.1"
          },
          {
            "binary_name": "openjdk-21-crac-testsupport",
            "binary_version": "21.0.11+10-0ubuntu1~26.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "openjdk-21-crac",
        "purl": "pkg:deb/ubuntu/openjdk-21-crac@21.0.11+10-0ubuntu1~26.04.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "21.0.11+10-0ubuntu1~26.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "21.0.8+9-0ubuntu1",
        "21.0.9+10-0ubuntu1",
        "21.0.10+7-0ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Thomas Beckers discovered that the JAXP component of CRaC JDK 21 did not\ncorrectly authenticate certain APIs. A remote unauthenticated attacker\ncould possibly use this issue to gain unauthorized access to sensitive\ninformation. (CVE-2026-22016)\n\nIt was discovered that the Networking component of CRaC JDK 21 did not\ncorrectly authenticate certain APIs. A remote unauthenticated attacker\ncould possibly use this issue to cause a denial of service.\n(CVE-2026-34282)\n\nIt was discovered that the JSSE component of CRaC JDK 21 did not correctly\nauthenticate certain APIs. A remote unauthenticated attacker could possibly\nuse this issue to cause a denial of service. (CVE-2026-22021)\n\nIt was discovered that the JGSS component of CRaC JDK 21 did not correctly\nauthenticate certain APIs. A remote attacker could possibly use this issue\nto obtain sensitive information.(CVE-2026-22013)\n\nIt was discovered that the 2D component of CRaC JDK 21 did not correctly\nhandle certain integer arithmetic. If a user or automated system were\ntricked into opening a specially crafted file, an attacker could possibly\nuse this issue to leak sensitive information. (CVE-2026-23865)\n\nIt was discovered that the Libraries component of CRaC JDK 21 did not\ncorrectly authenticate certain APIs. A remote unauthenticated attacker\ncould possibly use this issue to cause a denial of service.\n(CVE-2026-22018)\n\nKen Pyle discovered that the Security component of CRaC JDK 21 did not\ncorrectly authenticate certain APIs. A local attacker could possibly use\nthis issue to leak sensitive information. (CVE-2026-22007, CVE-2026-34268)\n\nIn addition to security fixes, the updated packages contain bug fixes, new\nfeatures, and possibly incompatible changes.\n\nPlease see the following for more information:\nhttps://openjdk.org/groups/vulnerability/advisories/2026-04-21",
  "id": "USN-8333-1",
  "modified": "2026-06-30T15:55:20Z",
  "published": "2026-05-28T12:01:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8333-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-22007"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-22013"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-22016"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-22018"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-22021"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-23865"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34268"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34282"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "openjdk-21-crac vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-22007",
    "UBUNTU-CVE-2026-22013",
    "UBUNTU-CVE-2026-22016",
    "UBUNTU-CVE-2026-22018",
    "UBUNTU-CVE-2026-22021",
    "UBUNTU-CVE-2026-23865",
    "UBUNTU-CVE-2026-34268",
    "UBUNTU-CVE-2026-34282"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.