CVE-2026-55086: Improper Link Resolution Before File Access

Etherpad is a real-time collaborative editor. Prior to 3.1.0, src/node/handler/ImportHandler.ts and src/node/handler/ExportHandler.ts derive temporary filenames from Math.random and place them in os.tmpdir. On a host with a shared world-writable temporary directory, a local unprivileged attacker...