CVE-2026-77423

A flaw was found in JLine. The built-in less viewer processes user-controlled search and display-filter patterns using Java's backtracking regular expression engine. A remote attacker could provide a specially crafted regular expression, leading to excessive CPU consumption and indefinitely...

CVE-2026-77423

The JLine Java library (versions 3.0.0 to 3.30.15 and 4.3.1 ) is vulnerable to a Regular Expression Denial of Service (ReDoS) . The built-in less viewer passes user-controlled search and display-filter patterns from getPattern(boolean doDisplayPattern) in builtins/src/main/java/org/jline/builtins...