CVE-2026-48129
Kestra task inputFiles accepts traversal filenames for worker file writes
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
19 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Kestra is an open-source, event-driven orchestration platform. Prior to versions 1.3.19, 1.2.19, 1.1.19, and 1.0.43, Kestra task `inputFiles` writes rendered file names directly under the task working directory. When a flow forwards untrusted execution or webhook data into an `inputFiles` file name, a caller can use `../` path segments to create or overwrite files outside that task working directory on the worker filesystem. Versions 1.3.19, 1.2.19, 1.1.19, and 1.0.43 patch the issue.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
Affected products
kestra-io · kestraWant to know if your infrastructure is exposed to this?
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