What’s Vulnerable › Vulnerabilities

CVE-2025-66249: Apache Livy: Unauthorized directory access

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-13 · updated 2026-06-17
• Weakness: CWE-22

Description

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.

Affected products

• Apache Software Foundation Apache Livy: from 0.3.0 before 0.9.0 — fixed in 0.9.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Livy 0.9.0. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/1xwphsfn4jbtym4k4o0zlvwfogwqwwc3
• http://www.openwall.com/lists/oss-security/2026/03/12/2

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