All vulnerabilities

CVE-2024-12798

QOS.CH logback-core Expression Language Injection vulnerability

Description

ACE vulnerability in JaninoEventEvaluator by QOS.CH logback-core up to and including version 1.5.12 in Java applications allows attackers to execute arbitrary code by compromising an existing logback configuration file or by injecting an environment variable before program execution.

Malicious logback configuration files can allow the attacker to execute arbitrary code using the JaninoEventEvaluator extension.

A successful attack requires the user to have write access to a configuration file. Alternatively, the attacker could inject a malicious environment variable pointing to a malicious configuration file. In both cases, the attack requires existing privilege.

Patch Available

Fix available through Seal Security. 

No upgrade required, protect your application instantly.

Fix without upgrading
Score
5.9
Severity
Medium
Ecosystem
Java
Publish Date
December 19, 2024
Modified Date
February 3, 2026
Score Vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/RE:L/U:Clear
Affected Versions