CVE-2026-49869Critical· 10.0▾ Hadal⚠ Exploited in the wildPoC availableKestra 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. Bec…
▾ Hadal zone — Critical and actively exploited (CISA KEV / 0day)
impact 55 · likelihood 0.4 · exploitation 25
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Exploit-prediction probability, daily snapshots since Sep 4.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Federal remediation due Sep 5, 2026
Last analysed / modified upstream
1.9%
1 GitHub repo
Added to the CISA catalog on Sep 2, 2026. Federal remediation due Sep 5, 2026. View catalog ↗
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.
kestra < 1.0.45kestra >= 1.1.0, < 1.3.21Upgrade past the affected range:
kestra 1.3.21Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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