TI-2026-13127 CVE-2026-15603 · GHSA-jxfw-x594-9x9m
morgan vulnerable to Log Forging via unescaped Unicode line separators
Priority LOW 30
morgan is an HTTP request logger middleware for Node.js.
3 records
morgan is an HTTP request logger middleware for Node.js.
Impact: The morgan logging middleware's :remote-user token extracts the Basic auth username from the Authorization request header and writes it to the log stream without neutralizing control characters.
An attacker can use the format parameter to inject arbitrary commands in the npm package morgan < 1.9.1.