CVE-2026-33433
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField in github.com/traefik/traefik
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/traefik/traefik/v2 | <2.11.42 | 2.11.42 |
| Go | github.com/traefik/traefik/v3 | >=3.0.0-beta1,<3.6.12 | 3.6.12 |
| Go | github.com/traefik/traefik/v3 | >=3.7.0-ea.1,<3.7.0-ea.3 | 3.7.0-ea.3 |
| Go | github.com/traefik/traefik | | |
References
- https://github.com/traefik/traefik/security/advisories/GHSA-qr99-7898-vr7c
- https://nvd.nist.gov/vuln/detail/CVE-2026-33433
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/releases/tag/v2.11.42
- https://github.com/traefik/traefik/releases/tag/v3.6.11
- https://github.com/traefik/traefik/releases/tag/v3.7.0-ea.3
- https://www.suse.com/security/cve/CVE-2026-33433.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.