FKIE_CVE-2025-53506

Vulnerability from fkie_nvd - Published: 2025-07-10 20:15 - Updated: 2025-11-04 22:16
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other EOL versions may also be affected. Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.
References
security@apache.orghttps://lists.apache.org/thread/p09775q0rd185m6zz98krg0fp45j8kr0Issue Tracking, Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/07/10/13
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html
Impacted products
Vendor Product Version
apache tomcat *
apache tomcat *
apache tomcat *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5D1D5DA0-D03A-4A7A-B0F8-78FBC3229322",
              "versionEndIncluding": "9.0.106",
              "versionStartIncluding": "9.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "641541D9-6F81-4357-B535-D83D25217A14",
              "versionEndIncluding": "10.1.42",
              "versionStartIncluding": "10.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C16A32B5-DB24-48E2-BABE-6F60360786DF",
              "versionEndIncluding": "11.0.8",
              "versionStartIncluding": "11.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106.\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.0 through 8.5.100.\u00a0Other EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de consumo incontrolado de recursos en Apache Tomcat si un cliente HTTP/2 no reconoce el marco de configuraci\u00f3n inicial que reduce el m\u00e1ximo de transmisiones simult\u00e1neas permitidas. Este problema afecta a Apache Tomcat: de 11.0.0-M1 a 11.0.8, de 10.1.0-M1 a 10.1.42, y de 9.0.0.M1 a 9.0.106. Se recomienda actualizar a las versiones 11.0.9, 10.1.43 o 9.0.107, que solucionan el problema."
    }
  ],
  "id": "CVE-2025-53506",
  "lastModified": "2025-11-04T22:16:21.790",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-07-10T20:15:26.970",
  "references": [
    {
      "source": "security@apache.org",
      "tags": [
        "Issue Tracking",
        "Mailing List",
        "Vendor Advisory"
      ],
      "url": "https://lists.apache.org/thread/p09775q0rd185m6zz98krg0fp45j8kr0"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/07/10/13"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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