Affects widely used Argo Workflows; enables RCE in CI/CD pipelines across environments.
CVE-2026-31892
Argo Workflows podSpecPatch bypasses security, enabling RCE.
Is CVE-2026-31892 being exploited?
Not confirmed. CVE-2026-31892 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 0.49% probability of exploitation in the next 30 days.
How severe is CVE-2026-31892?
CVE-2026-31892 is rated High with a CVSS score of 8.9. 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-2026-31892?
Yes. A fix has been recorded for CVE-2026-31892. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-31892 affect?
CVE-2026-31892 affects Argo Workflows (2.9.0–4.0.2, 3.7.11). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-31892?
Upgrade to 4.0.2+ or 3.7.11+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Workflow-submiters can inject pod specs, bypass Template restrictions, and run code in pods (RCE).
Patch when possible
- affected>= 4.0.0 and < 4.0.2
- affected>= 2.9.0 and < 3.7.11
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.