Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle
Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/traefik/traefik from v3.6.11 before v3.7.13.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-88010US | — | — | ||
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… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/traefik/traefik/commit/ddc1bf4660b85fd61fafdd821eb8216fb1a0b130WEB
- https://github.com/traefik/traefik/pull/13816WEB
- https://github.com/traefik/traefik/releases/tag/v3.7.13WEB
- https://github.com/traefik/traefik/security/advisories/GHSA-8fcf-v89g-xpg6ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-88010ADVISORY
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