UpHeron
All vulnerabilities

Servers and applications

CVE-2026-114641

Traefik 2.11.x before 2.11.58 and 3.x before 3.7.14 contains a race condition in NTLM and Kerberos (Negotiate) backend authentication, where the per-connection sticky round tripper slot is read and written without synchronization. Remote attackers can send concurrent HTTP/2 or HTTP/3 requests over one connection to orphan backend connections, break connection-bound authentication, or crash…

Severity
Medium 6.3
Published
22 Oct 2026
Last changed
28 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.11.58, 3.7.14
Sources
NVD

Affected software

SoftwareAffected versions
TraefikServers and applications · cpe:a:traefik:traefik
  • From 2.11.0 before 2.11.58
  • From 3.0.0 before 3.7.14

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-114641
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-114641