Paper/Archive/CVE-2026-94572

CVE-2026-94572

OpenStack Octavia — In OpenStack Octavia before 18.0.1, the Amphora provider driver did not validate the listener and pool tls_ciphers field for control char…

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Octavia6.0.0 – < 16.1.016.1.0CNA
Octavia17.0.0 – < 17.0.117.0.1CNA
Octavia18.0.0 – < 18.0.118.0.1CNA

Scores by source

mitre (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitbugs.launchpad.net/octavia/+bug/2162101refbugs.launchpad.net/octavia/+bug/2167565refbugs.debian.org/1148175patchopendev.org/openstack/octavia/commit/cad62902e4984a46ad80cbfa943e90006d8d599dadvisorysecurity.openstack.org/ossa/OSSA-2026-039.htmlrefopenwall.com/lists/oss-security/2026/09/21/6