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CVE-2025-66249

MediumPublished

Apache Livy: Unauthorized directory access

Published: Mar 13, 2026
Updated: Mar 13, 2026
Assigning CNA: apache
Evidence observed: Aug 8, 2026

Primary CVSS

6.3/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

0.6%

Low · next 30 days

Percentile: 47.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Livy. This issue affects Apache Livy: from 0.3.0 before 0.9.0. The vulnerability can only be exploited with non-default Apache Livy Server settings. If the configuration value "livy.file.local-dir-whitelist" is set to a non-default value, the directory checking can be bypassed. Users are recommended to upgrade to version 0.9.0, which fixes the issue.

Sources

CVE-2025-66249-POCPoC
A POC for Apache Livy Path Traversal Whitelist Bypass Vulnerability

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