Gotenberg has ExifTool stdin argument injection via metadata value newlines (bypass of key sanitization fix)

Vulnerability Details CWE: CWE-20 - Improper Input Validation The metadata value sanitization introduced in v8.30.1 commit 405f106 only validates metadata KEYS via safeKeyPattern regex. Metadata VALUES are passed unsanitized to go-exiftool SetString, which writes them as fmt.Fprintlne.stdin,...