CVE-2025-54813
HIGHApache Log4cxx <1.5.0 - Info Disclosure
Title source: llmDescription
Improper Output Neutralization for Logs vulnerability in Apache Log4cxx. When using JSONLayout, not all payload bytes are properly escaped. If an attacker-supplied message contains certain non-printable characters, these will be passed along in the message and written out as part of the JSON message. This may prevent applications that consume these logs from correctly interpreting the information within them. This issue affects Apache Log4cxx: before 1.5.0. Users are recommended to upgrade to version 1.5.0, which fixes the issue.
References (4)
Scores
CVSS v3
7.5
EPSS
0.0018
EPSS Percentile
39.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Classification
CWE
CWE-117
Status
published
Affected Products (1)
apache/log4cxx
< 1.5.0
Timeline
Published
Aug 22, 2025
Tracked Since
Feb 18, 2026