CVE-2025-11226
MEDIUMlogback-core <= 1.5.18 - Remote Code Execution via Conditional Configuration Processing
Title source: llmDescription
ACE vulnerability in conditional configuration file processing by QOS.CH logback-core up to and including version 1.5.18 in Java applications, allows an attacker to execute arbitrary code by compromising an existing logback configuration file or by injecting an environment variable before program execution. A successful attack requires the presence of Janino library and Spring Framework to be present on the user's class path. In addition, the attacker must 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.
References (2)
Core 2
Core References
Various Sources
https://logback.qos.ch/news.html#1.3.16
Various Sources
https://logback.qos.ch/news.html#1.5.19
Scores
CVSS v4
5.9
EPSS
0.0015
EPSS Percentile
4.6%
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:X/RE:M/U:Green
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-20
Status
published
Products (4)
ch.qos.logback/logback-core
1.4.0 - 1.5.19Maven
QOS.CH Sarl/Logback-core
0.9.20 - 1.5.18
QOS.CH Sarl/Logback-core
1.3.16
QOS.CH Sarl/Logback-core
1.5.19
Published
Oct 01, 2025
Tracked Since
Feb 18, 2026