CVE-2026-54328 — Pi: Predictable temporary extension install paths allow local privilege escalation on shared Linux hosts
Pi is a minimal terminal coding harness. From 0.74.0 until 0.78.1, Pi versions with temporary npm or git extension package installs used predictable paths under the operating sy…
Published: 2026-06-23 · CVSS: 7.3 · CVSS 3.1
Pi is a minimal terminal coding harness. From 0.74.0 until 0.78.1, Pi versions with temporary npm or git extension package installs used predictable paths under the operating system temporary directory. On Linux-based multi-user systems, a local attacker who can write to the shared temporary directory could prepare the expected package location before another user runs pi with a temporary extension package source. Pi could then load attacker-controlled extension code in the victim user's process. This vulnerability is fixed in 0.78.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7