CVE-2026-48129

published 2026-06-19

CVE-2026-48129: 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…

Priority P3 41 medium 6.5 CVSS 3.1

AV N AC H PR N UI N S U C N I H A L

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.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
kestra-io	kestra	< 1.0.43	1.0.43
kestra-io	kestra	—	—
kestra-io	kestra	—	—
kestra-io	kestra	—	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-22