QOS.CH logback-core Expression Language Injection vulnerability
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | ch.qos.logback:logback-core | >= 1.4.0, < 1.5.13, < 1.3.15 | 1.5.13, 1.3.15 |
References
- CVSS 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- Weakness (CWE)
CWE-917- Platform
- Java / Kotlin (Maven)
- Package
ch.qos.logback:logback-core- Disclosed
- 19.12.2024
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-pr98-23f8-jwxv - CC BY 4.0
Vulnerability history: ch.qos.logback:logback-core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 06.2021 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
- Medium 3
- Low 4
Disclosures per year
- 2021: 2
- 2022: 0
- 2023: 2
- 2024: 2
- 2025: 1
- 2026: 3
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QOS.CH logback-core Expression Language Injection vulnerability this entry
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