9.4

CVE-2026-94572: openstack octavia Code Injection

CVSS: 9.4v4.0CriticalAwaiting analysis
AliasesUBUNTU-CVE-2026-94572DEBIAN-CVE-2026-94572
Published 21-09-2026Last modified 24-09-2026
Open JSON

Vulnerability summary

CVE-2026-94572 is a critical (CVSS 9.4) Code Injection vulnerability in openstack octavia. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.4/10
010
Critical · v4.0 (CVE.org)
EPSS score
0.53%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
USN-8814-1

Timeline

  1. 21-09-2026
    PublishedVulnerability first disclosed.
  2. 24-09-2026
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

22-09-202618-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • octaviaAll versions (No fix recorded) | < 18.0.0-4
Openstack1 product
  • octavia≥ 6.0.0, < 16.1.0 | ≥ 17.0.0, < 17.0.1 | ≥ 18.0.0, < 18.0.1
Ubuntu1 product
  • octaviaAll versions (No fix recorded) | < 1:10.1.1-0ubuntu1.5 | < 1:14.0.0-0ubuntu1.6 | < 1:18.0.0-0ubuntu2.1

3 vendors · 3 products

References

10 links