GO-2026-6558Published
Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-88010 · Microsoft / collected KEV context
cve-program · CVE-2026-88010
- https://github.com/traefik/traefik/security/advisories/GHSA-8fcf-v89g-xpg6
- https://github.com/traefik/traefik/pull/13816
- https://github.com/traefik/traefik/commit/ddc1bf4660b85fd61fafdd821eb8216fb1a0b130
- https://github.com/traefik/traefik/releases/tag/v3.7.13
euvd · EUVD-2026-84532
- https://github.com/traefik/traefik/security/advisories/GHSA-8fcf-v89g-xpg6
- https://github.com/traefik/traefik/pull/13816
- https://github.com/traefik/traefik/commit/ddc1bf4660b85fd61fafdd821eb8216fb1a0b130
- https://github.com/traefik/traefik/releases/tag/v3.7.13
nvd · CVE-2026-88010
- https://github.com/traefik/traefik/commit/ddc1bf4660b85fd61fafdd821eb8216fb1a0b130
- https://github.com/traefik/traefik/pull/13816
- https://github.com/traefik/traefik/releases/tag/v3.7.13
- https://github.com/traefik/traefik/security/advisories/GHSA-8fcf-v89g-xpg6
osv · GHSA-8fcf-v89g-xpg6
- https://github.com/traefik/traefik/security/advisories/GHSA-8fcf-v89g-xpg6
- https://nvd.nist.gov/vuln/detail/CVE-2026-88010
- https://github.com/traefik/traefik/pull/13816
- https://github.com/traefik/traefik/commit/ddc1bf4660b85fd61fafdd821eb8216fb1a0b130
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/releases/tag/v3.7.13
osv · GO-2026-6558
- https://github.com/traefik/traefik/security/advisories/GHSA-8fcf-v89g-xpg6
- https://nvd.nist.gov/vuln/detail/CVE-2026-88010
- https://github.com/traefik/traefik/commit/ddc1bf4660b85fd61fafdd821eb8216fb1a0b130
- https://github.com/traefik/traefik/pull/13816
- https://github.com/traefik/traefik/releases/tag/v3.7.13
Related operational evidence
Explicit CVE identifiers- Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle · Affected-version evidence changed · 4 Nov 2026
- Traefik is an open source HTTP reverse proxy and load balancer. From 3.6.11 until 3.7.13, checkPassword in pkg/middlewares/auth/basic_auth.go constructs the BasicAuth singleflight key from the submitted password and stored secret. Concurren… · Advisory content revised · 29 Oct 2026