FKIE_CVE-2025-53114

Vulnerability from fkie_nvd - Published: 2026-06-18 17:16 - Updated: 2026-06-18 18:16
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged message queue to grow indefinitely, eventually causing an `OutOfMemoryError`. Versions 5.0.23, 6.0.19, 7.0.19, and 8.0.9 patch the issue. As a workaround, disable the acknowledgement extension.
References
security-advisories@github.comhttps://github.com/cometd/cometd/discussions/2116
security-advisories@github.comhttps://github.com/cometd/cometd/issues/2117
security-advisories@github.comhttps://github.com/cometd/cometd/pull/2118
security-advisories@github.comhttps://github.com/cometd/cometd/pull/2168
security-advisories@github.comhttps://github.com/cometd/cometd/pull/2169
security-advisories@github.comhttps://github.com/cometd/cometd/security/advisories/GHSA-cqgj-h8vf-4w59
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "cometd",
          "vendor": "cometd",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 5.0.0, \u003c 5.0.23"
            },
            {
              "status": "affected",
              "version": "\u003e= 6.0.0, \u003c 6.0.19"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 7.0.19"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.0.9"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged message queue to grow indefinitely, eventually causing an `OutOfMemoryError`. Versions 5.0.23, 6.0.19, 7.0.19, and 8.0.9 patch the issue. As a workaround, disable the acknowledgement extension."
    }
  ],
  "id": "CVE-2025-53114",
  "lastModified": "2026-06-18T18:16:18.760",
  "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": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-53114",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-18T17:30:58.888648Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-18T17:16:27.150",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cometd/cometd/discussions/2116"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cometd/cometd/issues/2117"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cometd/cometd/pull/2118"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cometd/cometd/pull/2168"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cometd/cometd/pull/2169"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cometd/cometd/security/advisories/GHSA-cqgj-h8vf-4w59"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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.