Bug 2446584 (CVE-2026-29777)
| Summary: | CVE-2026-29777 github.com/traefik/traefik: Traefik: Traffic redirection and hostname bypass via unsanitized input in router rules | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | sdawley |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in Traefik. A tenant with write access to an HTTPRoute resource can exploit this vulnerability by injecting specially crafted rule tokens into Traefik's router rule language through unsanitized header or query parameter match values. This allows the attacker to bypass listener hostname constraints in shared gateway deployments, leading to the redirection of traffic intended for legitimate hostnames to attacker-controlled backends.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
OSIDB Bzimport
2026-03-11 17:02:26 UTC
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