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CVE PROGRAM SOURCE RECORD7.0 High

CVE-2026-114637

Traefik v3.2.0 before v3.7.14 FastProxy NTLM/Negotiate Connection Pool Identity Leak

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Traefik from v3.2.0 before v3.7.14 contains an authentication bypass vulnerability in the experimental FastProxy connection pool, which fails to pin NTLM/Negotiate-authenticated backend connections to their frontend connection. Unauthenticated clients can be handed a pooled keep-alive backend connection where a victim completed an NTLM or Negotiate handshake, letting them read victim data and act as that victim.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

traefik traefik

Default version status: unaffected

  • 3.2.0 to < 3.7.14affected
  • 3.7.14unaffected
pkg:golang/github.com/traefik/traefik/v3

References