CVE-2026-49869
Unauthenticated RCE in Kestra via path suffix auth bypass.
Is CVE-2026-49869 being exploited?
Yes. CVE-2026-49869 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2026-49869?
CVE-2026-49869 is rated Critical with a CVSS score of 10.0. 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-2026-49869?
Yes. A fix has been recorded for CVE-2026-49869. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-49869 affect?
CVE-2026-49869 affects Kestra OSS (pre-1.0.45, 1.3.21). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-49869?
Upgrade to 1.0.45+ or 1.3.21+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Auth bypass allows unauthenticated user to run arbitrary workflows with root inside the worker container.
Patch when possible
- affected< 1.0.45
- affected>= 1.1.0 and < 1.3.21
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.