{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-114641","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-21T21:57:36.197Z","datePublished":"2026-10-22T01:43:40.663Z","dateUpdated":"2026-10-28T18:58:55.522Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-22T01:43:40.663Z"},"datePublic":"2026-10-07T00:00:00.000Z","title":"Traefik before 2.11.58 and 3.7.14 Race Condition in NTLM/Kerberos Round Tripper","descriptions":[{"lang":"en","value":"Traefik 2.11.x before 2.11.58 and 3.x before 3.7.14 contains a race condition in NTLM and Kerberos (Negotiate) backend authentication, where the per-connection sticky round tripper slot is read and written without synchronization. Remote attackers can send concurrent HTTP/2 or HTTP/3 requests over one connection to orphan backend connections, break connection-bound authentication, or crash Traefik."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","cweId":"CWE-362","type":"CWE"}]}],"affected":[{"vendor":"traefik","product":"traefik","defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/traefik/traefik/v2","versions":[{"version":"2.11.0","status":"affected","versionType":"semver","lessThan":"2.11.58"},{"version":"2.11.58","status":"unaffected","versionType":"semver"}]},{"vendor":"traefik","product":"traefik","defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/traefik/traefik/v3","versions":[{"version":"3.0.0","status":"affected","versionType":"semver","lessThan":"3.7.14"},{"version":"3.7.14","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*","versionStartIncluding":"2.11.0","versionEndExcluding":"2.11.58"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0.0","versionEndExcluding":"3.7.14"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM"}},{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS"}],"references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-mhjw-hmjv-p99x","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-mhjw-hmjv-p99x)"},{"name":"VulnCheck Advisory: Traefik before 2.11.58 and 3.7.14 Race Condition in NTLM/Kerberos Round Tripper","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/traefik-before-2.11.58-and-3.7.14-race-condition-in-ntlm-kerberos-round-tripper"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-28T18:58:45.880252Z","id":"CVE-2026-114641","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-28T18:58:55.522Z"}}]}}