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CVE-2026-53404

Full vulnerability record from the local CVENow database.

Description

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

Severity
HIGH
CVSS score
7.3 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-06-29 21:16:44.527000
Last modified
2026-10-25 21:10:00.770000
View original CVE JSON
{
  "id": "CVE-2026-53404",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-29T21:16:44.527",
  "lastModified": "2026-10-25T21:10:00.770",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected.\n\nUsers are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue."
    },
    {
      "lang": "es",
      "value": "La vulnerabilidad de implementación de flujo de control siempre incorrecto en la válvula de reescritura de Apache Tomcat significaba que si la primera condición en una cadena OR coincidía, las condiciones no-OR subsiguientes eran omitidas.\n\nEste problema afecta a Apache Tomcat: desde 11.0.0-M1 hasta 11.0.22, desde 10.1.0-M1 hasta 10.1.55, desde 9.0.0.M1 hasta 9.0.118, desde 8.5.0 hasta 8.5.100. Otras versiones que han llegado al fin de su soporte también pueden verse afectadas.\n\nSe recomienda a los usuarios actualizar a la versión 11.0.23, 10.1.56 o 9.0.119, que solucionan el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Tomcat",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "11.0.0-M1",
              "lessThanOrEqual": "11.0.22",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "10.1.0-M1",
              "lessThanOrEqual": "10.1.55",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "9.0.0.M1",
              "lessThanOrEqual": "9.0.118",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "8.5.0",
              "lessThanOrEqual": "8.5.100",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "8.0.0",
              "versionType": "semver",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-30T12:30:42.750259Z",
          "id": "CVE-2026-53404",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-670"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.5.0",
              "versionEndIncluding": "8.5.100",
              "matchCriteriaId": "FF43D0D7-FBF3-4D7A-84C4-47B65A75A524"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "9.0.0",
              "versionEndExcluding": "9.0.119",
              "matchCriteriaId": "EA5B1F1F-8593-47C6-B14E-8F60BE7E1199"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.1.0",
              "versionEndExcluding": "10.1.56",
              "matchCriteriaId": "4A8C20B4-DBE1-4890-AD5E-D5EABB6B739D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.0.0",
              "versionEndExcluding": "11.0.23",
              "matchCriteriaId": "C43AD2A0-8785-4A37-AAAE-347B1E0463F1"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://lists.apache.org/thread/rdhpghgfskrdmw9hqzjgjrtw538smpmz",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory",
        "Mailing List"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/06/29/21",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}