CVE-2026-114637
High · 8.7CVSS
8.7
EPSS
0.3%
Published
Oct 22, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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