medium
CVE-2026-88878
Traefik respondingTimeouts (readTimeout, on by default at 60s) are not applied to the HTTP/3 request path - readTimeout is a TCP connection deadline that cannot bind a QUIC stream, so an unauthenticated client trickling body bytes holds a request and one upstream connection open indefinitely (CVSS 6.9)
- Severity
- medium
- Affected product
- Traefik
- Affected versions
- Traefik ≥ 2.8.2, < 2.11.56
- Affected versions
- Traefik ≥ 3.0.0, < 3.7.12
- Fixed in
- Traefik 2.11.56
- Fixed in
- Traefik 3.7.12
- Detection basis
- Appliance fingerprint
- Shipped rule
- Traefik: Traefik respondingTimeouts (readTimeout, on by default at 60s) are not applied to the HTTP/3 request path - readTimeout is a TCP connection deadline that cannot bind a QUIC stream, so an unauthenticated client trickling body bytes holds a request and one upstream connection open indefinitely (CVSS 6.9)
- Added to NewScan
- 2026-09-11
- Detected by
- NewScan — free, self-hosted
How NewScan reports it
APPLIANCE FINGERPRINT
NewScan fingerprints the Traefik appliance and reports this CVE when the detected version falls inside the affected range below.
APPLIANCE FINGERPRINT
NewScan fingerprints the Traefik appliance and reports this CVE when the detected version falls inside the affected range below.
References
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