RHSA-2026:37767

Vulnerability from csaf_redhat - Published: 2026-07-10 13:30 - Updated: 2026-08-03 15:16
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Low
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: tomcat10: * tomcat10-10.1.57-1.hum1 (noarch) * tomcat10-admin-webapps-10.1.57-1.hum1 (noarch) * tomcat10-common-10.1.57-1.hum1 (noarch) * tomcat10-docs-webapp-10.1.57-1.hum1 (noarch) * tomcat10-el-5.0-api-10.1.57-1.hum1 (noarch) * tomcat10-jsp-3.1-api-10.1.57-1.hum1 (noarch) * tomcat10-lib-10.1.57-1.hum1 (noarch) * tomcat10-servlet-6.0-api-10.1.57-1.hum1 (noarch) * tomcat10-user-instance-10.1.57-1.hum1 (noarch) * tomcat10-webapps-10.1.57-1.hum1 (noarch) * tomcat10-10.1.57-1.hum1.src (src)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-59083

A flaw was found in Apache Tomcat. This vulnerability, located in the rewrite valve, is due to improper handling of URL encoding (hex encoding). A remote attacker could exploit this to bypass security constraints in certain configurations, potentially gaining unauthorized access or performing actions that should be restricted.

3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:tomcat10-main@noarch —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:tomcat10-main@src —
Vendor Fix fix
Workaround
Threats
Impact Low
CVE-2026-59084

A flaw was found in Apache Tomcat. Insufficient technical documentation regarding the secure configuration of the EncryptInterceptor component may lead to deployments with insecure settings. This vulnerability could allow an attacker to exploit misconfigurations that arise from unclear guidance, potentially compromising the confidentiality or integrity of data processed by the affected system.

3.8 (Low)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
CWE-1188 - Initialization of a Resource with an Insecure Default
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:tomcat10-main@noarch —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:tomcat10-main@src —
Vendor Fix fix
Workaround
Threats
Impact Low
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Low"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for Red Hat Hardened Images RPMs is now available.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "This update includes the following RPMs:\n\ntomcat10:\n  * tomcat10-10.1.57-1.hum1 (noarch)\n  * tomcat10-admin-webapps-10.1.57-1.hum1 (noarch)\n  * tomcat10-common-10.1.57-1.hum1 (noarch)\n  * tomcat10-docs-webapp-10.1.57-1.hum1 (noarch)\n  * tomcat10-el-5.0-api-10.1.57-1.hum1 (noarch)\n  * tomcat10-jsp-3.1-api-10.1.57-1.hum1 (noarch)\n  * tomcat10-lib-10.1.57-1.hum1 (noarch)\n  * tomcat10-servlet-6.0-api-10.1.57-1.hum1 (noarch)\n  * tomcat10-user-instance-10.1.57-1.hum1 (noarch)\n  * tomcat10-webapps-10.1.57-1.hum1 (noarch)\n  * tomcat10-10.1.57-1.hum1.src (src)",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2026:37767",
        "url": "https://access.redhat.com/errata/RHSA-2026:37767"
      },
      {
        "category": "external",
        "summary": "https://images.redhat.com/",
        "url": "https://images.redhat.com/"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-59084",
        "url": "https://access.redhat.com/security/cve/CVE-2026-59084"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/",
        "url": "https://access.redhat.com/security/updates/classification/"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-59083",
        "url": "https://access.redhat.com/security/cve/CVE-2026-59083"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_37767.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update",
    "tracking": {
      "current_release_date": "2026-08-03T15:16:43+00:00",
      "generator": {
        "date": "2026-08-03T15:16:43+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.3.8"
        }
      },
      "id": "RHSA-2026:37767",
      "initial_release_date": "2026-07-10T13:30:20+00:00",
      "revision_history": [
        {
          "date": "2026-07-10T13:30:20+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-08-01T08:08:43+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-08-03T15:16:43+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Hardened Images",
                "product": {
                  "name": "Red Hat Hardened Images",
                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Hardened Images"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "tomcat10-main@noarch",
                "product": {
                  "name": "tomcat10-main@noarch",
                  "product_id": "tomcat10-main@noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/tomcat10@10.1.57-1.hum1?arch=noarch\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "tomcat10-main@src",
                "product": {
                  "name": "tomcat10-main@src",
                  "product_id": "tomcat10-main@src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/tomcat10@10.1.57-1.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "tomcat10-main@noarch as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:tomcat10-main@noarch"
        },
        "product_reference": "tomcat10-main@noarch",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "tomcat10-main@src as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:tomcat10-main@src"
        },
        "product_reference": "tomcat10-main@src",
        "relates_to_product_reference": "Red Hat Hardened Images"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-59083",
      "cwe": {
        "id": "CWE-807",
        "name": "Reliance on Untrusted Inputs in a Security Decision"
      },
      "discovery_date": "2026-07-14T09:01:06.476183+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2499917"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Apache Tomcat. This vulnerability, located in the rewrite valve, is due to improper handling of URL encoding (hex encoding). A remote attacker could exploit this to bypass security constraints in certain configurations, potentially gaining unauthorized access or performing actions that should be restricted.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This Low impact vulnerability in Apache Tomcat\u0027s rewrite valve allows a security constraint bypass through improper URL encoding. Exploitation requires specific configurations and has high attack complexity, limiting its overall risk to Red Hat products.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:tomcat10-main@noarch",
          "Red Hat Hardened Images:tomcat10-main@src"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-59083"
        },
        {
          "category": "external",
          "summary": "RHBZ#2499917",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499917"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-59083",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-59083"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59083",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59083"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/3g63zos2gkjo5vgnrk8kxmosv47w6wbq",
          "url": "https://lists.apache.org/thread/3g63zos2gkjo5vgnrk8kxmosv47w6wbq"
        }
      ],
      "release_date": "2026-07-14T08:13:04.861000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-10T13:30:20+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:tomcat10-main@noarch",
            "Red Hat Hardened Images:tomcat10-main@src"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:37767"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, review Apache Tomcat\u0027s rewrite valve configurations. If the rewrite valve is not essential for your application, consider disabling it. If it is required, ensure its configuration does not permit improper URL encoding that could lead to security constraint bypasses. A service restart may be required for changes to take effect.",
          "product_ids": [
            "Red Hat Hardened Images:tomcat10-main@noarch",
            "Red Hat Hardened Images:tomcat10-main@src"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:tomcat10-main@noarch",
            "Red Hat Hardened Images:tomcat10-main@src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve"
    },
    {
      "cve": "CVE-2026-59084",
      "cwe": {
        "id": "CWE-1188",
        "name": "Initialization of a Resource with an Insecure Default"
      },
      "discovery_date": "2026-07-14T10:01:17.476740+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2499931"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Apache Tomcat. Insufficient technical documentation regarding the secure configuration of the EncryptInterceptor component may lead to deployments with insecure settings. This vulnerability could allow an attacker to exploit misconfigurations that arise from unclear guidance, potentially compromising the confidentiality or integrity of data processed by the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure configurations",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This Low impact vulnerability in Apache Tomcat arises from insufficient documentation for the EncryptInterceptor. Without clear guidance on secure configuration, administrators might inadvertently deploy the interceptor in a way that weakens security, rather than a direct code flaw. This issue affects Red Hat products utilizing Apache Tomcat, including Red Hat Enterprise Linux and Red Hat JBoss Web Server.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:tomcat10-main@noarch",
          "Red Hat Hardened Images:tomcat10-main@src"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-59084"
        },
        {
          "category": "external",
          "summary": "RHBZ#2499931",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499931"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-59084",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-59084"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59084",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59084"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/7w9746ootcxo0gvx26xjpw80l31f1qw7",
          "url": "https://lists.apache.org/thread/7w9746ootcxo0gvx26xjpw80l31f1qw7"
        }
      ],
      "release_date": "2026-07-14T08:24:21.531000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-10T13:30:20+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:tomcat10-main@noarch",
            "Red Hat Hardened Images:tomcat10-main@src"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:37767"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, ensure that the EncryptInterceptor in Apache Tomcat is configured according to secure best practices. Review existing configurations of EncryptInterceptor to verify that all security requirements are met and that no insecure settings are in place. If the EncryptInterceptor is not actively used, no specific action is required.",
          "product_ids": [
            "Red Hat Hardened Images:tomcat10-main@noarch",
            "Red Hat Hardened Images:tomcat10-main@src"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.8,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:tomcat10-main@noarch",
            "Red Hat Hardened Images:tomcat10-main@src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure configurations"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

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.