FKIE_CVE-2026-25949

Vulnerability from fkie_nvd - Published: 2026-02-12 20:16 - Updated: 2026-02-13 14:23
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, there is a potential vulnerability in Traefik managing STARTTLS requests. An unauthenticated client can bypass Traefik entrypoint respondingTimeouts.readTimeout by sending the 8-byte Postgres SSLRequest (STARTTLS) prelude and then stalling, causing connections to remain open indefinitely, leading to a denial of service. This vulnerability is fixed in 3.6.8.
References
security-advisories@github.comhttps://github.com/traefik/traefik/commit/31e566e9f1d7888ccb6fbc18bfed427203c35678
security-advisories@github.comhttps://github.com/traefik/traefik/releases/tag/v3.6.8
security-advisories@github.comhttps://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2w
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, there is a potential vulnerability in Traefik managing STARTTLS requests. An unauthenticated client can bypass Traefik entrypoint respondingTimeouts.readTimeout by sending the 8-byte Postgres SSLRequest (STARTTLS) prelude and then stalling, causing connections to remain open indefinitely, leading to a denial of service. This vulnerability is fixed in 3.6.8."
    }
  ],
  "id": "CVE-2026-25949",
  "lastModified": "2026-02-13T14:23:48.007",
  "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"
      }
    ]
  },
  "published": "2026-02-12T20:16:11.227",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/traefik/traefik/commit/31e566e9f1d7888ccb6fbc18bfed427203c35678"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/traefik/traefik/releases/tag/v3.6.8"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2w"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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