VDB
CVE-2026-54761
CVE-2026-54761
PUBLISHED
CVSS 6 MEDIUM
Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services
EPSS 0.37% · 29.5th percentile
Risk Scores
CVSS 4.0
6
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.37%
29.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| traefik | traefik | < 3.6.21, < 3.6.21, >= 3.7.0-ea.1, < 3.7.5 |
| chainguard | traefik-2.11 | 0, 0, 0 |
| chainguard | traefik-fips-2.11 | 0, 0, 0 |
| alpine | traefik | 0, 0, 0 |
| github.com | traefik/traefik | 0, 0, 0 |
| github.com | traefik/traefik/v2 | 0, 0, 0 |
| github.com | traefik/traefik/v3 | 3.7.0-ea.1, 3.7.0-ea.1, 0 |
Timeline
- Jun 11, 2026 CVE Published
- Jun 19, 2026 Security Advisory
- Aug 7, 2026 EPSS Score
- Aug 24, 2026 EPSS Score
- Aug 26, 2026 EPSS Score
- Aug 30, 2026 EPSS Score
- Sep 3, 2026 EPSS Score
- Sep 6, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 12, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-54761 advisory
- https://github.com/advisories/GHSA-3g6v-2r68-prfc advisory
- https://github.com/traefik/traefik/security/advisories/GHSA-3g6v-2r68-prfc url
- https://github.com/traefik/traefik/releases/tag/v3.6.21 url
- https://github.com/traefik/traefik/releases/tag/v3.7.5 url