CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LCVE-2026-88012
Medium (5.3) in traefik traefik. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in github.com/traefik/traefik/v2 2.11.56.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
- CWE
- CWE-770
- Published
- Modified
- Record from
- the NVD, synced
Affected
- traefik:traefik
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-7ghq-v6jf-g56c | Go | github.com/traefik/traefik/v2 | >=2.8.2 <2.11.56 | 2.11.56 |
| GHSA-7ghq-v6jf-g56c | Go | github.com/traefik/traefik/v3 | >=3.0.0 <3.7.12 | 3.7.12 |
| GO-2026-6454 | Go | github.com/traefik/traefik | all versions | no fix published |
| GO-2026-6454 | Go | github.com/traefik/traefik/v2 | >=2.8.2 <2.11.56 | 2.11.56 |
| GO-2026-6454 | Go | github.com/traefik/traefik/v3 | >=3.0.0 <3.7.12 | 3.7.12 |
References
- https://github.com/traefik/traefik/commit/a8d0bc425859dde7481a6c9a324e610b81d754d0
- https://github.com/traefik/traefik/pull/13717
- https://github.com/traefik/traefik/releases/tag/v2.11.56
- https://github.com/traefik/traefik/releases/tag/v3.7.12
- https://github.com/traefik/traefik/security/advisories/GHSA-7ghq-v6jf-g56c