CVE-2026-94572

CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 57% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 5 sources updated this weekElevated
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.4Exploit: Elevated riskExposed: 0

A fix is available — apply it.

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 v3
9.4
EG Score
9.4(medium)
EG Risk
58(Track*)
EG Risk 58/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity94% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

September 21, 2026

Last Modified

September 24, 2026

Advisory Details (6)

Auto-updated Sep 23, 2026
🔬 Proof of concept available. Patch available.
generic🟡 PoC Available

OSSA-2026-039: HAProxy configuration injection leading to remote code execution in Octavia — OpenStack Security Advisories 0.0.1.dev394 documentation

https://security.openstack.org/ossa/OSSA-2026-039.html
generic🟡 PoC Available

oss-security - [OSSA-2026-039] OpenStack Octavia: HAProxy configuration injection leading to remote code execution in Octavia (CVE-2026-pending)

https://openwall.com/lists/oss-security/2026/09/21/6
generic

Fix HAProxy config injection via tls_ciphers field · cad62902e4 - octavia - OpenDev: Free Software Needs Free Tools

https://opendev.org/openstack/octavia/commit/cad62902e4984a46ad80cbfa943e90006d8d599d
generic🟡 PoC Available

Bug #2167565 “[OSSA-2026-039] Command Injection (RCE) on Octavia...” : Bugs : octavia

https://bugs.launchpad.net/octavia/+bug/2167565
generic🟡 PoC Available

Bug #2162101 “[OSSA-2026-039] Octavia Pool tls_ciphers Permits H...” : Bugs : octavia

https://bugs.launchpad.net/octavia/+bug/2162101
generic Patch Available

#1148175 - Command Injection (RCE) on Octavia amphora via API (CVE-2026-94571, CVE-2026-94572) - Debian Bug report logs

https://bugs.debian.org/1148175

Vendor Advisories for CVE-2026-94572(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython3-octavia (1:18.0.0-0ubuntu2.1) @ resolute2026-09-25ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 42× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-25 11:05 UTCVendor advisory
  2. 2026-09-25 11:05 UTCGHSA enrichment
  3. 2026-09-25 07:16 UTCVendor advisory
  4. 2026-09-25 07:16 UTCGHSA enrichment
  5. 2026-09-25 03:27 UTCVendor advisory
  6. 2026-09-25 03:27 UTCGHSA enrichment
  7. 2026-09-24 23:38 UTCEG score recompute
  8. 2026-09-24 23:38 UTCVendor advisory
  9. 2026-09-24 23:38 UTCGHSA enrichment
  10. 2026-09-24 22:52 UTCEG score recompute
  11. 2026-09-24 22:52 UTCVendor advisory
  12. 2026-09-24 22:52 UTCGHSA enrichment
  13. 2026-09-24 22:05 UTCVendor advisory
  14. 2026-09-24 22:05 UTCGHSA enrichment
  15. 2026-09-24 18:16 UTCVendor advisory
  16. 2026-09-24 18:16 UTCGHSA enrichment
  17. 2026-09-24 14:27 UTCEG score recompute
  18. 2026-09-24 14:27 UTCGHSA enrichment
  19. 2026-09-24 14:04 UTCEPSS rescore
  20. 2026-09-24 10:38 UTCGHSA enrichment
  21. 2026-09-24 06:47 UTCGHSA enrichment
  22. 2026-09-24 02:58 UTCGHSA enrichment
  23. 2026-09-23 23:09 UTCGHSA enrichment
  24. 2026-09-23 19:07 UTCEG score recompute
  25. 2026-09-23 19:07 UTCGHSA enrichment
Show 17 more
  1. 2026-09-23 17:54 UTCEPSS rescore
  2. 2026-09-23 15:17 UTCGHSA enrichment
  3. 2026-09-23 11:28 UTCGHSA enrichment
  4. 2026-09-23 07:39 UTCGHSA enrichment
  5. 2026-09-23 03:50 UTCGHSA enrichment
  6. 2026-09-23 00:01 UTCGHSA enrichment
  7. 2026-09-22 20:12 UTCGHSA enrichment
  8. 2026-09-22 16:34 UTCEG score recompute
  9. 2026-09-22 16:34 UTCGHSA enrichment
  10. 2026-09-22 16:01 UTCEPSS rescore
  11. 2026-09-22 12:43 UTCGHSA enrichment
  12. 2026-09-22 08:54 UTCGHSA enrichment
  13. 2026-09-22 05:01 UTCGHSA enrichment
  14. 2026-09-22 01:11 UTCGHSA enrichment
  15. 2026-09-21 21:22 UTCEG score recompute
  16. 2026-09-21 20:25 UTCEG score recompute
  17. 2026-09-21 20:23 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-94572?
CVE-2026-94572 is a critical vulnerability published on September 21, 2026. 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…
When was CVE-2026-94572 disclosed?
CVE-2026-94572 was first published in the National Vulnerability Database on September 21, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-94572 actively exploited?
CVE-2026-94572 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.4% of all scored CVEs.
What is the CVSS score of CVE-2026-94572?
CVE-2026-94572 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-94572?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-94572, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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