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Vulnerability record · CVE-2026-94572 · published 21 September 2026

CVE-2026-94572: Code injection vulnerability

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.

9.4 CVSS 4.0 Critical EPSS 0.53% · top 57.2% CWE-94 · Code injection Awaiting Analysis
9.4CVSS 4.0 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
7References
24 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://bugs.debian.org/1148175
https://bugs.launchpad.net/octavia/+bug/2162101
https://bugs.launchpad.net/octavia/+bug/2167565
https://opendev.org/openstack/octavia/commit/cad62902e4984a46ad80cbfa943e90006d8d599d
https://openwall.com/lists/oss-security/2026/09/21/6
https://security.openstack.org/ossa/OSSA-2026-039.html
https://bugs.launchpad.net/octavia/+bug/2162101

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Source: NIST National Vulnerability Database (record CVE-2026-94572), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.