TI-2026-63466 Aliases CVE-2026-94571 GHSA-33h9-ppgm-5785

Code injection in OpenStack Octavia

MEDIUM 43CWE-94Published 2026-09-21 · Updated 2026-09-22

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Partial Red Hat: 4 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-94.

Summary

In OpenStack Octavia before 18.0.1, the Amphora provider driver did not reject control characters in the L7 policy redirect_url and redirect_prefix fields. The RFC 3986 URL validator percent-encodes control characters before validating, and thus newlines passed structural checks, but Octavia stored and wrote the raw unencoded value directly into the HAProxy configuration generated on the amphora. An authenticated project member who owns a load balancer can therefore inject arbitrary HAProxy directives through a REDIRECT_TO_URL L7 policy. Only deployments using the Amphora provider are affected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00534 45th percentileScored 2026-11-07

Fix Partial Octavia (OpenStack): 16.1.0, 17.0.1, 18.0.1Red Hat: 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
OpenStack	Octavia	0.8.0 to before 16.1.0; 17.0.0 to before 17.0.1; 18.0.0 to before 18.0.1	16.1.0, 17.0.1, 18.0.1	Patch available	CNA

Octavia VendorOpenStack Affected 0.8.0 to before 16.1.0; 17.0.0 to before 17.0.1; 18.0.0 to before 18.0.1 Fixed in 16.1.0, 17.0.1, 18.0.1 Patch available CNA

Remediation

Fix · CNA Octavia (OpenStack) Fixed in 16.1.0, 17.0.1, 18.0.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2026-09-21
OpenStack Octavia — security.openstack.org/ossa/OSSA-2026-039.html
2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM
Other records, highest priority first
- TI-2026-63467 Code injection in OpenStack OctaviaPriority HIGH 76
Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat OpenStack Platform 13 (Queens)	Affected	No fix planned: Will not fix
Red Hat OpenStack Platform 16.2	Affected	No fix planned: Will not fix
Red Hat OpenStack Platform 17.1	Affected	No fix yet
Red Hat OpenStack Platform 18.0	Affected	No fix yet

Timeline

2026-10-02 Threatist record created from CVE-2026-94571
2026-10-03 Alias added: GHSA-33h9-ppgm-5785

References

Patch 1

https://opendev.org/openstack/octavia/commit/bad7074621562d90a38be4639c1ab3e245f5bf39

Advisory 1

https://security.openstack.org/ossa/OSSA-2026-039.html

Other 4

TI-2026-78562 Incorrect authorization in OpenStack Manila share operations CVSS 3.1CRITICAL 9.9
TI-2026-63467 Code injection in OpenStack Octavia CVSS 4.0CRITICAL 9.4
TI-2017-13226 The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before… CVSS 3.1CRITICAL 9.8
TI-2026-69629 OpenStack Mistral flaw lets users change other projects' resources CVSS 4.0HIGH 7.2
TI-2026-69623 Command injection in OpenStack Mistral std.ssh_proxied action CVSS 4.0HIGH 8.7
TI-2022-17779 Improper privilege management in OpenStack CVSS 3.1HIGH 8.8

See all 332 →

Sources

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