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.
Published: 2026-09-21
Score: 9.4 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Mon, 21 Sep 2026 22:45:00 +0000

Type Values Removed Values Added
Title TLS Cipher Injection in OpenStack Octavia Amphora Provider

Mon, 21 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
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.
First Time appeared Openstack
Openstack octavia
Weaknesses CWE-94
CPEs cpe:2.3:a:openstack:octavia:*:*:*:*:*:*:*:*
Vendors & Products Openstack
Openstack octavia
References
Metrics cvssV4_0

{'score': 9.4, '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'}


Subscriptions

Openstack Octavia
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-21T20:13:35.557Z

Reserved: 2026-09-21T20:13:35.187Z

Link: CVE-2026-94572

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-21T21:17:22.150

Modified: 2026-09-21T21:17:22.150

Link: CVE-2026-94572

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T22:30:12Z

Weaknesses