CVE-2026-94571In 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.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.4 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Weakness (CWE)
- CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 22, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
OpenStack Octavia openstack:octavia (from the name) | from 0.8.0 before 16.1.0; from 17.0.0 before 17.0.1; from 18.0.0 before 18.0.1 | CNA record |
References
- https://bugs.launchpad.net/octavia/+bug/2162103issue-tracking
- https://bugs.launchpad.net/octavia/+bug/2167565issue-tracking
- https://bugs.debian.org/1148175issue-tracking
- https://opendev.org/openstack/octavia/commit/bad7074621562d90a38be4639c1ab3e245f5bf39patch
- https://security.openstack.org/ossa/OSSA-2026-039.htmlvendor-advisory
- https://openwall.com/lists/oss-security/2026/09/21/6mailing-list
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.