CVE-2026-88012
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.3
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CWE
- CWE-770
- Published
- 2026-09-10
- Last modified
- 2026-09-10
Affected products
- traefik traefik
- traefik traefik
Weakness type
Related vulnerabilities
- CVE-2026-45769 — ikev2: unbounded client transform storage can lead to resource exhaustion
- CVE-2026-45768 — Suricata ldap: unbounded responses per transaction can lead to resource exhaustion
- CVE-2026-45766 — Suricata nfs: unbounded stateful structures can lead to resource exhaustion
- CVE-2026-45765 — Suricata dnp3: unbounded reassembly can lead to resource exhaustion
- CVE-2026-45763 — Suricata lua: sandbox allocation limit not enforced for new allocations
- CVE-2026-88878 — Traefik v2.8.2 through v3.6 HTTP/3 Timeout Bypass
- CVE-2026-87011 — Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout
- CVE-2023-54394 — PocketMine-MP before 4.18.0-ALPHA2 Bandwidth Amplification via InventoryTransactionPacket