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CVE-2025-66249 Apache Livy

Affected softwareApache Livy
Severity6.3 Medium CVSS 3.1
Fixed in0.9.0-incubating
WeaknessPath traversal (CWE-22)
Published13 Mar 2026
Updated17 Jun 2026

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. The 1 repository below are public GitHub repositories with fewer than 5 stars.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC 1 indexed, none at 5+ stars
  • EPSS 0.68% chance in 30 days

1 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

IndexArtifactStarsFirst seen
GitHub PoC A POC for Apache Livy Path Traversal Whitelist Bypass Vulnerability 2026-03-15

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

Decided by A vulnerability class already blocked by an ARMR security rule
Finding Protected by Waratek's ARMR path-traversal security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-22: Path Traversal.

How to mitigate CVE-2025-66249

Upgrade Apache Livy to 0.9.0-incubating or later. Until you can, Waratek RASP blocks exploitation with its path traversal rule. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.livy:livy-server 0.3.0-incubating 0.9.0-incubating unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
nvd apache livy generic ≥ 0.3.0 and < 0.9.0
osv org.apache.livy livy-server generic ≥ 0.3.0 and < 0.9.0

References

URLTags
https://github.com/apache/incubator-livy PACKAGE
https://lists.apache.org/thread/1xwphsfn4jbtym4k4o0zlvwfogwqwwc3 WEB
http://www.openwall.com/lists/oss-security/2026/03/12/2 WEB

Timeline

Published2026-03-13By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.