PT-2026-3646 · Qos.Ch · Logback-Core

Google Fuzz

+1

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Published

2026-01-01

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Updated

2026-05-20

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CVE-2026-1225

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions logback-core versions prior to 1.5.25
Description A configuration file processing issue exists in QOS.CH logback-core, potentially allowing an attacker to instantiate classes already present on the system's class path by manipulating a logback configuration file. Successful exploitation requires write access to a configuration file and the presence of a malicious Java class on the user's class path. After instantiation, the instance is likely discarded.
Recommendations Update to logback-core version 1.5.25 or later.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CLEANSTART-2026-CF62516
CLEANSTART-2026-CI66802
CLEANSTART-2026-DD05788
CLEANSTART-2026-DO09088
CLEANSTART-2026-EP51501
CLEANSTART-2026-EZ90321
CLEANSTART-2026-GH89210
CLEANSTART-2026-HQ78610
CLEANSTART-2026-IS05941
CLEANSTART-2026-JK47870
CLEANSTART-2026-KM27583
CLEANSTART-2026-KU61465
CLEANSTART-2026-LE11246
CLEANSTART-2026-LO22603
CLEANSTART-2026-RD06185
CLEANSTART-2026-RM01950
CLEANSTART-2026-RN56220
CLEANSTART-2026-SP91806
CLEANSTART-2026-TX96881
CLEANSTART-2026-VH41554
CVE-2026-1225
GHSA-QQPG-MVQG-649V
OPENSUSE-SU-2026:10114-1
SUSE-SU-2026:0361-1

Affected Products

Logback-Core