# CVE-2026-54328

## Summary

- **CVE ID:** CVE-2026-54328
- **Severity:** HIGH
- **CVSS Score:** 7.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
- **CWE:** CWE-379
- **Published:** Jun 23, 2026
- **Last Modified:** Jun 24, 2026

## Description

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.

## Affected Products

- earendil-works — pi (>= 0.74.0, < 0.78.1)

## References

- [CNA](https://github.com/earendil-works/pi/security/advisories/GHSA-jfgx-wxx8-mp94)
- [CNA](https://github.com/earendil-works/pi/pull/5345)
- [CNA](https://github.com/earendil-works/pi/commit/a98e087e5d08ea2a536bf73dbb0aebb87c3ef72e)
- [CNA](https://github.com/earendil-works/pi/commit/ea3465a8e371a12d0167a06b60f93878e3a3df44)
- [CNA](https://github.com/earendil-works/pi/releases/tag/v0.78.1)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.16%
- **EPSS Percentile:** 5.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._