CVE-2026-48129

Published: Jun 19, 2026Modified: Jun 23, 2026Deferred

6.5

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

Exploitability: 2.2 / Impact: 4.2

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (2)

https://github.com/kestra-io/kestra/security/advisories/GHSA-q3fw-mvgv-pjr2

Source: security-advisories@github.com

https://github.com/kestra-io/kestra/security/advisories/GHSA-q3fw-mvgv-pjr2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.