Apache Log4j Core: Log injection in Rfc5424Layout due to silent configuration incompatibility
Apache Log4j Core's Rfc5424Layout https://logging.apache.org/log4j/2.x/manual/layouts.html#RFC5424Layout , in versions 2.21.0 through 2.25.3, is vulnerable to log injection via CRLF sequences due to undocumented renames of security-relevant configuration attributes. Two distinct issues affect users of stream-based sy…
Severity medium: primary CNA CVSS 6.9 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-04-10T15:40:17.713Z. Updated 2026-04-10T17:50:12.484Z.