CVE-2026-88008
קריטית 9.1
תיאור (מקור, אנגלית)
Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.26 until 2.11.57 and 3.7.13, Traefik forwards a client-supplied Connection header requesting Upgrade, the Upgrade: h2c token, and HTTP2-Settings to a shared backend. If the backend accepts h2c and returns 101 Switching Protocols, Traefik enters a raw tunnel and no longer applies routers, BasicAuth, ForwardAuth, IPAllowList, RateLimit, access logging, metrics, or tracing to later HTTP/2 requests, allowing an unauthenticated request through an unprotected route to reach protected paths on the same backend. This issue is fixed in 2.11.57 and 3.7.13.
מדדים
- CVSS 3.1
-
9.1 (CRITICAL)
מקור הציון: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 4.0
-
7.0 (HIGH)
מקור הציון: CNA
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 - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-4/10/2026
- CWE
- CWE-444, CWE-863
מוצרים מושפעים
traefik: traefik
קישורים
- https://github.com/traefik/traefik/security/advisories/GHSA-w4v4-9rw7-5326 PatchVendor Advisory
- https://github.com/traefik/traefik/commit/a277e94664ffc1ce9543df552d3bbf48d4d3… Patch
- https://github.com/traefik/traefik/pull/13797 Issue TrackingPatch
- https://github.com/traefik/traefik/releases/tag/v2.11.57 Release Notes
- https://github.com/traefik/traefik/releases/tag/v3.7.13 Release Notes