CVE Watch10 sept 2026

CVE-2026-88007

Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.0 until 2.11.57 and 3.7.13, the HTTP/3 entrypoint ConnContext does

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 10 sept 2026 · Última mod.: 10 sept 2026 · CWE-287 · CWE-863

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.0 until 2.11.57 and 3.7.13, the HTTP/3 entrypoint ConnContext does not call service.AddTransportOnContext, so kerberosRoundTripper uses a shared backend transport instead of a transport dedicated to each frontend connection. With HTTP/3 enabled, a backend using connection-bound NTLM or Negotiate authentication, and backend keep-alive, an unrelated client can reuse a backend connection authenticated for a victim, read victim-only data, and act as that victim without the victim credentials. This issue is fixed in 2.11.57 and 3.7.13.

Referencias oficiales

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