CVE-2026-48129
Kestra task inputFiles accepts traversal filenames for worker file writes
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.
INFO
Published Date :
June 19, 2026, 8:16 p.m.
Last Modified :
June 19, 2026, 8:16 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-48129
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Kestra to version 1.3.19 or later.
- Apply patches for versions 1.2.19, 1.1.19, or 1.0.43.
- Ensure untrusted data is not used in file names.
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CVE-2026-48129 vulnerability anywhere in the article.