CVE-2026-94572
Publication date 22 September 2026
Last updated 22 September 2026
Ubuntu priority
Description
In OpenStack Octavia before 18.0.1, the Amphora provider driver did not validate the listener and pool tls_ciphers field for control characters. The value is written verbatim into the HAProxy configuration generated on the amphora, and thus an authenticated project member who owns a TLS-enabled load balancer can embed a newline and inject arbitrary HAProxy configuration directives. Only deployments using the Amphora provider are affected.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| octavia | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v4.0
Base score
9.4 · Critical
Vector: 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
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-94572
- https://bugs.launchpad.net/octavia/+bug/2167565
- https://bugs.launchpad.net/octavia/+bug/2162101
- https://bugs.launchpad.net/octavia/+bug/2162103
- https://security.openstack.org/ossa/OSSA-2026-039.html
- https://opendev.org/openstack/octavia/commit/cad62902e4984a46ad80cbfa943e90006d8d599d
- https://bugs.debian.org/1148175
- https://openwall.com/lists/oss-security/2026/09/21/6