CVE-2026-85595: Traefik before v2.11.55 and v3.0.0 through v3.7.10 Authentication Bypass via digestAuth
Vendor fix available · Affected: traefik · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 84% of scored CVEs
DescriptionCVE.org
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 products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- traefik · traefikbefore 2.11.55
- traefik · traefikfrom 3.0.0 up to and including 3.7.10
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- Traefik < 2.11.55 / 3.0.0 - 3.7.10 - Digest Authentication Bypass · nuclei template in projectdiscovery/nuclei-templates
- Vendor
- traefik
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-85595 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.