CVE-2026-94571
Severity not reportedIn OpenStack Octavia before 18.0.1, the Amphora provider driver did not reject control characters in the L7 policy redirect_url and redirect_prefix fields.
In OpenStack Octavia before 18.0.1, the Amphora provider driver did not reject control characters in the L7 policy redirect_url and redirect_prefix fields. The RFC 3986 URL validator percent-encodes control characters before validating, and thus newlines passed structural checks, but Octavia stored and wrote the raw unencoded value directly into the HAProxy configuration generated on the amphora. An authenticated project member who owns a load balancer can therefore inject arbitrary HAProxy directives through a REDIRECT_TO_URL L7 policy. Only deployments using the Amphora provider are affected.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://bugs.debian.org/1148175 cve@mitre.org
- https://bugs.launchpad.net/octavia/+bug/2162103 cve@mitre.org
- https://bugs.launchpad.net/octavia/+bug/2167565 cve@mitre.org
- https://opendev.org/openstack/octavia/commit/bad7074621562d90a38be4639c1ab3e245f5bf39 cve@mitre.org
- https://openwall.com/lists/oss-security/2026/09/21/6 cve@mitre.org
- https://security.openstack.org/ossa/OSSA-2026-039.html cve@mitre.org