CVE-2026-88012
mediumTraefik is an open source HTTP reverse proxy and load balancer.
Vendor / product: Traefik — traefik
Traefik is an open source HTTP reverse proxy and load balancer. From 2.8.2 until 2.11.56 and 3.7.12, HTTP/3 entrypoints do not apply entryPoints..transport.respondingTimeouts.readTimeout because the timeout is enforced on a TCP connection and the HTTP/3 server has no corresponding QUIC stream deadline. An unauthenticated client can use a slow request body, trickling data indefinitely while holding a request and an upstream connection open and exhausting backends with bounded connection pools. This issue is fixed in 2.11.56 and 3.7.12.
CVSS
5.3
5.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Severity source: NVD CVSS v3.1 (security-advisories@github.com)
Timeline (UTC)
Published: 2026-09-10 16:18
Modified: 2026-09-14 20:00
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
traefik / traefik ≥2.8.2 <2.11.56, ≥3.0.0 <3.7.12
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/traefik/traefik/commit/a8d0bc425859dde7481a6c9a324e610b81d754d0
Patch / mitigation: https://github.com/traefik/traefik/pull/13717
Patch / mitigation: https://github.com/traefik/traefik/releases/tag/v2.11.56
Patch / mitigation: https://github.com/traefik/traefik/releases/tag/v3.7.12
Patch / mitigation: https://github.com/traefik/traefik/security/advisories/GHSA-7ghq-v6jf-g56c
References
- https://github.com/traefik/traefik/commit/a8d0bc425859dde7481a6c9a324e610b81d754d0 security-advisories@github.com
- https://github.com/traefik/traefik/pull/13717 security-advisories@github.com
- https://github.com/traefik/traefik/releases/tag/v2.11.56 security-advisories@github.com
- https://github.com/traefik/traefik/releases/tag/v3.7.12 security-advisories@github.com
- https://github.com/traefik/traefik/security/advisories/GHSA-7ghq-v6jf-g56c security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗