RCE in OpenStack Octavia Amphora affects cloud load balancers used across private/public clouds; compromise can disrupt tenant traffic and cloud infrastructure.
CVE-2026-94571
Auth'd tenant can inject HAProxy directives via Octavia Amphora L7 redirect, enabling RCE.
Is CVE-2026-94571 being exploited?
Not confirmed. CVE-2026-94571 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.33% probability of exploitation in the next 30 days.
How severe is CVE-2026-94571?
CVE-2026-94571 is rated Critical with a CVSS score of 9.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-94571?
Yes. A fix has been recorded for CVE-2026-94571. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-94571 affect?
CVE-2026-94571 affects OpenStack Octavia < 18.0.1 (Amphora provider), Amphora HAProxy-based load balancer VMs, OpenStack deployments using Octavia Amphora. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-94571?
Upgrade Octavia to 18.0.1+, restrict tenant privileges, audit LB configs
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated project member can inject arbitrary HAProxy directives via redirect_url/redirect_prefix, leading to remote code execution on Amphora load balancers.
Immediate action required
- affected>= 0.8.0 and < 16.1.0
- affected>= 17.0.0 and < 17.0.1
- affected>= 18.0.0 and < 18.0.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.