Traefik affected by TLS ClientAuth Bypass on HTTP/3
Priority LOW 38CWE-1395Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
### Summary There is a potential vulnerability in Traefik managing HTTP/3 connections. More details in the [CVE-2025-68121](https://nvd.nist.gov/vuln/detail/CVE-2025-68121). ## Patches - https://github.com/traefik/traefik/releases/tag/v2.11.37 - https://github.com/traefik/traefik/releases/tag/v3.6.8 ## Workarounds No workaround ## For more information If you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).
Why it matters now
Fix Fixed github.com/traefik/traefik/v2 (Go): 2.11.37github.com/traefik/traefik/v3 (Go): 3.6.8
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | github.com/traefik/traefik (Go) | up to 1.7.34 | — | No fix listed | GHSA-gv8r-9rw9-9697 |
| — | github.com/traefik/traefik/v2 (Go) | before 2.11.37 | 2.11.37 | Patch available | GHSA-gv8r-9rw9-9697 |
| — | github.com/traefik/traefik/v3 (Go) | before 3.6.8 | 3.6.8 | Patch available | GHSA-gv8r-9rw9-9697 |
- github.com/traefik/traefik (Go) Vendor— Affected up to 1.7.34 Fixed in — No fix listed GHSA-gv8r-9rw9-9697
- github.com/traefik/traefik/v2 (Go) Vendor— Affected before 2.11.37 Fixed in 2.11.37 Patch available GHSA-gv8r-9rw9-9697
- github.com/traefik/traefik/v3 (Go) Vendor— Affected before 3.6.8 Fixed in 3.6.8 Patch available GHSA-gv8r-9rw9-9697
Remediation
- Fix · GHSA-gv8r-9rw9-9697 github.com/traefik/traefik/v2 (Go) Fixed in 2.11.37 Advisory →
- Fix · GHSA-gv8r-9rw9-9697 github.com/traefik/traefik/v3 (Go) Fixed in 3.6.8 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-gv8r-9rw9-9697
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences