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CVE-2026-85595

Traefik before v2.11.55 and v3.0.0 through v3.7.10 Authentication Bypass via digestAuth PUBLISHED

Description (CNA)

Traefik versions before v2.11.55 and versions v3.0.0 through v3.7.10 contain an authentication bypass vulnerability in the digestAuth middleware where unknown usernames receive an empty secret instead of rejection. Attackers can compute a valid digest response using the empty secret and arbitrary credentials to bypass authentication on any digestAuth-protected route without a valid username or password.

Affected (CNA)

Vendor / productVersions
traefik / traefikaffected 0 before 2.11.55; unaffected 2.11.55
traefik / traefikaffected 3.0.0 through 3.7.10

CWE

CWE-287

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.