CVE-2026-54327 Pi: Race condition in auth.json writes could expose stored credentials

Pi is a minimal terminal coding harness. From 0.74.0 until 0.78.1, Pi stored API keys and OAuth credentials in auth.json. A race condition in the file write path could briefly create or rewrite this file with permissions derived from the process umask before tightening the file to owner-only...

CVE-2026-54327

The Pi credential storage vulnerability (CVE-2026-54327) stems from a race in the auth.json write path. Between file creation/writes and the subsequent permission tightening, auth.json could be created or rewritten with permissions derived from the process umask, briefly exposing stored API keys ...