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CVE record · CVE-2026-49869

Kestra: Unauthenticated Remote Code Execution via Authentication Bypass in `AuthenticationFilter`

CVSS 10.0 CriticalCriticalIn CISA KEVEPSS 0.021 · 81st percentile

Critical, because:

  • In CISA’s KEV catalogue since 2 Sept 2026: it is known to be exploited.
  • CVSS score 10.0: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: GitHub_M) at 26 Jun 2026, 20:58 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
kestra-io kestra
  • affected < 1.0.45
  • affected >= 1.1.0, < 1.3.21
Identifiers
CVE-2026-49869
CNA
GitHub_M
Weakness (CWE)
CWE-78 · CWE-184 · CWE-287 · CWE-918
Tags
Published
26 Jun 2026
Updated
3 Sept 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
10.0 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Listed since 2 Sept 2026: known to be exploited.
  • EPSS 0.021, the 81st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 26 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.