# CVE-2026-88012

## Summary

- **CVE ID:** CVE-2026-88012
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-770
- **Published:** Sep 10, 2026
- **Last Modified:** Sep 10, 2026

## Description

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.

## Affected Products

- traefik — traefik (>= 2.8.2, < 2.11.56)
- traefik — traefik (>= 3.0.0, < 3.7.12)

## References

- [CNA](https://github.com/traefik/traefik/security/advisories/GHSA-7ghq-v6jf-g56c)
- [CNA](https://github.com/traefik/traefik/pull/13717)
- [CNA](https://github.com/traefik/traefik/commit/a8d0bc425859dde7481a6c9a324e610b81d754d0)
- [CNA](https://github.com/traefik/traefik/releases/tag/v2.11.56)
- [CNA](https://github.com/traefik/traefik/releases/tag/v3.7.12)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._