{"id":"CVE-2026-114637","aliases":[],"cve":{"records":[{"id":"CVE-2026-114637","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-21T21:57:36.197Z","published":"2026-10-22T01:43:37.851Z","modified":"2026-10-28T18:57:09.823Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-22T01:43:37.851Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-28T18:57:09.823Z"}],"references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-53qr-784g-cj35","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/traefik-3.2.0-before-3.7.14-fastproxy-ntlm-negotiate-connection-pool-identity-leak","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-488","description":"Exposure of Data Element to Wrong Session","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2.0","versionEndExcluding":"3.7.14"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-28T18:49:46.134711Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Traefik v3.2.0 before v3.7.14 FastProxy NTLM/Negotiate Connection Pool Identity Leak","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"Traefik from v3.2.0 before v3.7.14 contains an authentication bypass vulnerability in the experimental FastProxy connection pool, which fails to pin NTLM/Negotiate-authenticated backend connections to their frontend connection. Unauthenticated clients can be handed a pooled keep-alive backend connection where a victim completed an NTLM or Negotiate handshake, letting them read victim data and act as that victim.","score":8.7,"severity":"high","published":"2026-10-22T01:43:37.851Z","modified":"2026-10-28T18:57:09.823Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"traefik","name":"traefik","platforms":[],"versions":[{"version":"3.2.0","status":"affected","lessThan":"3.7.14","versionType":"semver"},{"version":"3.7.14","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/traefik/traefik/v3","packageIdentity":{"ecosystem":"Go","name":"github.com/traefik/traefik/v3"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-114637"}],"remediation":[],"references":["https://github.com/traefik/traefik/security/advisories/GHSA-53qr-784g-cj35","https://www.vulncheck.com/advisories/traefik-3.2.0-before-3.7.14-fastproxy-ntlm-negotiate-connection-pool-identity-leak"],"sources":[{"name":"CVE","id":"CVE-2026-114637","modified":"2026-10-28T18:57:09.823Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-114637"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","score":7},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","score":8.7}],"sourceAffected":[],"observedAt":"2026-10-29T14:34:07.230Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T03:35:31.150Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-28T19:35:31.746Z","attemptedAt":"2026-10-28T19:35:31.746Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-28T19:35:32.149Z","attemptedAt":"2026-10-28T19:35:32.149Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-28T19:35:32.149Z","attemptedAt":"2026-10-28T19:35:32.149Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-28T19:35:32.149Z","attemptedAt":"2026-10-28T19:35:32.149Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-114637","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114637","modified":"2026-10-28T19:17:28.470","score":7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-28T19:35:31.746Z"},{"source":"NVD","id":"CVE-2026-114637","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114637","modified":"2026-10-28T19:17:28.470","score":8.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","checkedAt":"2026-10-28T19:35:31.746Z"},{"source":"GitHub Advisory Database","id":"GHSA-68x8-f35f-jp2f","url":"https://github.com/advisories/GHSA-68x8-f35f-jp2f","modified":"2026-10-22T03:33:41Z","score":8.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","checkedAt":"2026-10-28T19:35:32.149Z"},{"source":"FIRST EPSS","id":"CVE-2026-114637","url":"https://www.first.org/epss/","probability":0.00284,"percentile":0.20918,"date":"2026-10-28","checkedAt":"2026-10-28T19:35:32.149Z"},{"source":"ENISA EUVD","id":"EUVD-2026-107892","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107892","modified":"Oct 22, 2026, 1:43:37 AM","score":7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","checkedAt":"2026-10-28T19:35:32.149Z"}],"aiSummary":{"text":"Traefik versions 3.2.0 before 3.7.14 have an authentication bypass vulnerability in the FastProxy connection pool, allowing unauthenticated clients to access victim data. The vulnerability occurs when NTLM/Negotiate-authenticated backend connections are not properly pinned to their frontend connection. This can let attackers read victim data and act as the victim.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:54:06.663Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-114637"}]}}