Actively exploited · CISA KEV · NVD published 2026-06-26
Actively exploitedCVE-2026-49869
Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in Kestra OSS uses request.getPath().endsWith("/configs") to whitelist the public configuration endpoint from Basic Auth. Because the check is a suffix match rather than an exact path match, any API path whose last segment is configs bypasses authentication entirely. An unauthenticated remote attacker can exploit this to create and execute arbitrary workflows without credentials. Because Kestra ships with script execution plugins (plugin-script-shell, plugin-script-python, etc.) enabled by default, this directly results in unauthenticated Remote Code Execution as root inside the Kestra worker container. This vulnerability is fixed in 1.0.45 and 1.3.21.
Signals
- Exploited in the wild
- Yesadded 2026-09-02 · due 2026-09-05. An observation, not a forecast.
- EPSS · 30-day forecast
- 2%Chance of exploitation in the next 30 days, 81th percentile of all CVEs. A forecast; KEV outranks it.
- CVSS · NVD · CRITICAL
- 10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Internet exposure
- not stated by sourcesNo exposure census on this CVE's dispatches.
Exploits
2 known · links onlyGitHub PoCs · by trust, then stars2
- EQSTLab/CVE-2026-49869 ↗Trust ok 100
Kestra Unauthenticated RCE
★ 4 · created 2026-09-29
- Ap0dexMe0/CVE-2026-49869 ↗Trust ok 100
Kestra Auth-Bypass Vulnerability Checker
★ 3 · created 2026-06-30
Fake proof-of-concept repositories have been used to deliver malware to the researchers who run them. The trust verdict is our engine's heuristic over the repository (account age, what it ships, how its stars arrived); it is a reason to read the code first, not a finding about its author.
On the wire
1 dispatchWatch this one?
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