High severity · published Oct 22, 2026
CVE-2026-114636
Traefik v3.7.13 Authentication Bypass via ssl-passthrough Ingress HTTP Router
New
8.7
CVSS
0.3%
EPSS
No
On KEV
Description
Traefik v3.7.13 before v3.7.14 contains an access-control bypass in the Kubernetes Ingress NGINX provider, where the HTTP router generated for ssl-passthrough Ingresses on non-TLS entry points never applies the Ingress's access-control annotations. Unauthenticated attackers reaching the HTTP entry point with the Ingress host can access backends protected by auth-type, auth-url, or whitelist-source-range annotations, with nothing logged.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TR
traefik · traefik
3.7.13 before 3.7.14 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-114636
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-114636
Vendor Advisory
https://github.com/traefik/traefik/security/advisories/GHSA-qvj7-gq9c-hp7q
Third Party Advisory
https://www.vulncheck.com/advisories/traefik-3.7.13-authentication-bypass-via-ssl-passthrough-ingress-http-router
More from traefik
10.0
CVE-2026-54763
Traefik: headerField underscore-variant identity spoofing in BasicAuth / DigestAuth / ForwardAuth
10.0
CVE-2026-53622
Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts
10.0
CVE-2026-48491
Traefik: SNICheck ignores wildcard TLSOptions mappings, allowing domain-fronted mTLS bypass
10.0
CVE-2026-48020
Traefik StripPrefix Route-Level Auth Bypass via Path Normalization
10.0
CVE-2026-39858
Traefik: Forwarded alias spoofing top pre-auth decision bypass