CVE-2022-21704: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

log4js-node is a port of log4js to node.js. In affected versions default file permissions for log files created by the file, fileSync and dateFile appenders are world-readable (in unix). This could cause problems if log files contain sensitive information. This would affect any users that have not supplied their own permissions for the files via the mode parameter in the config. Users are advised to update.

Affected products

• Debian Debian Linux: version 10.0 only
• LOG4JS Project LOG4JS: before 6.4.0 (fixed in 6.4.0)

Published 2022-01-19. Last modified 2026-06-17.