{
  "schema_version": "1.4.0",
  "id": "GHSA-3p2h-wqq4-wf4h",
  "modified": "2025-08-08T18:52:38Z",
  "published": "2025-04-28T21:30:43Z",
  "aliases": [
    "CVE-2025-31650"
  ],
  "summary": "Apache Tomcat Denial of Service via invalid HTTP priority header",
  "details": "Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service.\n\nThis issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.90 though 8.5.100.\n\nUsers are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.",
  "severity": [
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-coyote"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "9.0.76"
            },
            {
              "fixed": "9.0.104"
            }
          ]
        }
      ],
      "database_specific": {
        "last_known_affected_version_range": "<= 9.0.102"
      }
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-coyote"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "10.1.10"
            },
            {
              "fixed": "10.1.40"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-coyote"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "11.0.0-M2"
            },
            {
              "fixed": "11.0.6"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat.embed:tomcat-embed-core"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "9.0.76"
            },
            {
              "fixed": "9.0.104"
            }
          ]
        }
      ],
      "database_specific": {
        "last_known_affected_version_range": "<= 9.0.102"
      }
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat.embed:tomcat-embed-core"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "10.1.10"
            },
            {
              "fixed": "10.1.40"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat.embed:tomcat-embed-core"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "11.0.0-M2"
            },
            {
              "fixed": "11.0.6"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-coyote"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "8.5.0"
            },
            {
              "last_affected": "8.5.100"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat.embed:tomcat-embed-core"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "8.5.0"
            },
            {
              "last_affected": "8.5.100"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31650"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/1eef1dc459c45f1e421d8bd25ef340fc1cc34edc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/40ae788c2e64d018b4e58cd4210bb96434d0100d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/75554da2fc5574862510ae6f0d7b3d78937f1d40"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/8cc3b8fb3f2d8d4d6a757e014f19d1fafa948a60"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/b7674782679e1514a0d154166b1d04d38aaac4a9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/b98e74f517b36929f4208506e5adad22cb767baa"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/cba1a0fe1289ee7f5dd46c61c38d1e1ac5437bff"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/ded0285b96b4d3f5560dfc8856ad5ec4a9b50ba9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/f619e6a05029538886d5a9d987925d573b5bb8c2"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/tomcat"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826"
    },
    {
      "type": "WEB",
      "url": "https://tomcat.apache.org/security-10.html"
    },
    {
      "type": "WEB",
      "url": "https://tomcat.apache.org/security-11.html"
    },
    {
      "type": "WEB",
      "url": "https://tomcat.apache.org/security-9.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/04/28/2"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-459",
      "CWE-460"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-04-29T14:59:22Z",
    "nvd_published_at": "2025-04-28T20:15:20Z"
  }
}