Is CVE-2026-48129 actively exploited?

No active exploitation of CVE-2026-48129 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-48129 be exploited remotely?

Yes. CVE-2026-48129 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-48129?

CVE-2026-48129 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-48129

CWE-22Published: June 19, 2026· Updated: Jun 23, 2026

6.5

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2026-48129 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.