CVE-2026-94571

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 week
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: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

September 21, 2026

Last Modified

September 22, 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 L7 policy redirect URLs · bad7074621 - octavia - OpenDev: Free Software Needs Free Tools

https://opendev.org/openstack/octavia/commit/bad7074621562d90a38be4639c1ab3e245f5bf39
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 #2162103 “[OSSA-2026-039] Octavia L7 redirect_url Permits HA...” : Bugs : octavia

https://bugs.launchpad.net/octavia/+bug/2162103
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-2026-94571(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 (1:14.0.0-0ubuntu1.6) @ noble2026-09-25ubuntu

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 37× in last 7d / 37× 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 08:32 UTCVendor advisory
  2. 2026-09-25 08:32 UTCGHSA enrichment
  3. 2026-09-25 04:14 UTCVendor advisory
  4. 2026-09-25 04:14 UTCGHSA enrichment
  5. 2026-09-24 23:57 UTCVendor advisory
  6. 2026-09-24 23:57 UTCGHSA enrichment
  7. 2026-09-24 19:28 UTCVendor advisory
  8. 2026-09-24 19:28 UTCGHSA enrichment
  9. 2026-09-24 15:10 UTCEG score recompute
  10. 2026-09-24 15:10 UTCVendor advisory
  11. 2026-09-24 15:10 UTCGHSA enrichment
  12. 2026-09-24 14:04 UTCEPSS rescore
  13. 2026-09-24 10:53 UTCGHSA enrichment
  14. 2026-09-24 06:35 UTCGHSA enrichment
  15. 2026-09-24 02:16 UTCGHSA enrichment
  16. 2026-09-23 21:59 UTCEG score recompute
  17. 2026-09-23 21:59 UTCGHSA enrichment
  18. 2026-09-23 17:54 UTCEPSS rescore
  19. 2026-09-23 17:41 UTCGHSA enrichment
  20. 2026-09-23 13:23 UTCGHSA enrichment
  21. 2026-09-23 09:05 UTCGHSA enrichment
  22. 2026-09-23 04:48 UTCGHSA enrichment
  23. 2026-09-23 00:30 UTCGHSA enrichment
  24. 2026-09-22 20:12 UTCGHSA enrichment
  25. 2026-09-22 18:38 UTCEG score recompute
Show 12 more
  1. 2026-09-22 18:38 UTCGHSA enrichment
  2. 2026-09-22 16:01 UTCEPSS rescore
  3. 2026-09-22 14:20 UTCEG score recompute
  4. 2026-09-22 14:20 UTCGHSA enrichment
  5. 2026-09-22 13:46 UTCEG score recompute
  6. 2026-09-22 13:46 UTCGHSA enrichment
  7. 2026-09-22 10:16 UTCGHSA enrichment
  8. 2026-09-22 05:58 UTCGHSA enrichment
  9. 2026-09-22 01:40 UTCGHSA enrichment
  10. 2026-09-21 21:22 UTCEG score recompute
  11. 2026-09-21 20:25 UTCEG score recompute
  12. 2026-09-21 20:23 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-94571?
CVE-2026-94571 is a critical vulnerability published on September 21, 2026. In OpenStack Octavia before 18.0.1, the Amphora provider driver did not reject control characters in the L7 policy redirecturl and redirectprefix fields. The RFC 3986 URL validator percent-encodes control characters before validating, and thus newlines passed structural checks, but Octavia stored…
When was CVE-2026-94571 disclosed?
CVE-2026-94571 was first published in the National Vulnerability Database on September 21, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-94571 actively exploited?
CVE-2026-94571 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-2026-94571?
CVE-2026-94571 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-94571?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-94571, 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

Explore the affected products and dependency analysis for CVE-2026-94571

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