CVE-2026-54328

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 94% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
37
EG Risk 37/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

Published

June 17, 2026

Last Modified

June 25, 2026

Advisory Details (5)

Auto-updated Jun 24, 2026
Patch available. Sources: github_pr, github_release, github, github_commit.
githubMentions a patch (unverified)

Predictable temporary extension install paths allow local privilege escalation on shared Linux hosts · Advisory · earendil-works/pi · GitHub

Affected: 0.78.1 released

https://github.com/earendil-works/pi/security/advisories/GHSA-jfgx-wxx8-mp94
github_release Patch Available

v0.78.1

Patch available: earendil-works/pi v0.78.1

https://github.com/earendil-works/pi/releases/tag/v0.78.1
github_pr

fix(coding-agent): move temporary extension cache

Fix merged in earendil-works/pi PR #5345 on 2026-06-02 — awaiting tagged release

https://github.com/earendil-works/pi/pull/5345
github_commit

commit ea3465a8e371 (earendil-works/pi)

Fix landed in earendil-works/pi commit ea3465a8e371 — awaiting tagged release

https://github.com/earendil-works/pi/commit/ea3465a8e371a12d0167a06b60f93878e3a3df44
github_commit

commit a98e087e5d08 (earendil-works/pi)

Fix landed in earendil-works/pi commit a98e087e5d08 — awaiting tagged release

https://github.com/earendil-works/pi/commit/a98e087e5d08ea2a536bf73dbb0aebb87c3ef72e

Vendor Advisories for CVE-2026-54328(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(2 across 1 ecosystem)
npm(2)
PackageVulnerable rangeFix by version rangeDependents
@earendil-works/pi-coding-agent—
  • 0.74.0 up to 0.78.1: fixed in 0.78.1
—
@mariozechner/pi-coding-agent—
  • 0.50.0 through 0.73.1: no fix on record
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 121 total refreshes for this CVE.

  1. 2026-10-07 23:48 UTCEPSS rescore
  2. 2026-10-06 15:18 UTCEPSS rescore
  3. 2026-10-05 17:43 UTCEPSS rescore
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  6. 2026-10-03 06:09 UTCOSV refresh
  7. 2026-10-02 17:56 UTCEPSS rescore
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  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-14 03:08 UTCEG score recompute
  22. 2026-09-13 16:47 UTCEPSS rescore
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  24. 2026-09-10 09:35 UTCEPSS rescore
  25. 2026-09-08 22:01 UTCEPSS rescore
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  1. 2026-09-07 16:01 UTCEPSS rescore
  2. 2026-09-06 13:47 UTCEPSS rescore
  3. 2026-09-04 05:06 UTCEPSS rescore
  4. 2026-09-02 14:12 UTCEPSS rescore
  5. 2026-09-01 13:54 UTCEPSS rescore
  6. 2026-09-01 04:40 UTCEPSS rescore
  7. 2026-08-30 22:26 UTCEG score recompute
  8. 2026-08-30 19:17 UTCEPSS rescore
  9. 2026-08-30 01:22 UTCEPSS rescore
  10. 2026-08-28 21:41 UTCEPSS rescore
  11. 2026-08-27 14:25 UTCEPSS rescore
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  13. 2026-08-25 13:49 UTCEPSS rescore
  14. 2026-08-24 22:27 UTCEG score recompute
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  21. 2026-08-19 17:04 UTCEPSS rescore
  22. 2026-08-19 08:12 UTCEG score recompute
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-16 21:06 UTCEG score recompute
  26. 2026-08-16 14:56 UTCEPSS rescore
  27. 2026-08-16 08:59 UTCEG score recompute
  28. 2026-08-16 02:14 UTCEPSS rescore
  29. 2026-08-15 09:47 UTCEG score recompute
  30. 2026-08-15 01:30 UTCEPSS rescore
  31. 2026-08-14 00:49 UTCEG score recompute
  32. 2026-08-13 22:00 UTCEPSS rescore
  33. 2026-08-12 15:52 UTCEG score recompute
  34. 2026-08-12 13:51 UTCEPSS rescore
  35. 2026-08-11 17:32 UTCEG score recompute
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  38. 2026-08-09 21:23 UTCEG score recompute
  39. 2026-08-09 13:46 UTCEPSS rescore
  40. 2026-08-08 23:25 UTCEG score recompute
  41. 2026-08-08 16:37 UTCEPSS rescore
  42. 2026-08-06 16:22 UTCEG score recompute
  43. 2026-08-06 13:47 UTCEPSS rescore
  44. 2026-08-06 05:23 UTCEG score recompute
  45. 2026-08-05 19:17 UTCEPSS rescore
  46. 2026-08-03 15:30 UTCEG score recompute
  47. 2026-08-03 10:36 UTCEPSS rescore
  48. 2026-08-02 06:31 UTCEG score recompute
  49. 2026-08-02 02:27 UTCEPSS rescore
  50. 2026-08-01 08:26 UTCEG score recompute
  51. 2026-08-01 04:16 UTCEPSS rescore
  52. 2026-07-30 22:42 UTCEG score recompute
  53. 2026-07-30 16:28 UTCEPSS rescore
  54. 2026-07-30 03:44 UTCEG score recompute
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  57. 2026-07-28 15:37 UTCEPSS rescore
  58. 2026-07-27 18:11 UTCEG score recompute
  59. 2026-07-26 19:12 UTCEG score recompute
  60. 2026-07-25 14:18 UTCEPSS rescore
  61. 2026-07-24 14:18 UTCEPSS rescore
  62. 2026-07-23 14:18 UTCEPSS rescore
  63. 2026-07-23 03:19 UTCEG score recompute
  64. 2026-07-22 14:08 UTCEPSS rescore
  65. 2026-07-21 15:25 UTCEPSS rescore
  66. 2026-07-20 17:08 UTCEPSS rescore
  67. 2026-07-19 14:31 UTCEPSS rescore
  68. 2026-07-19 14:31 UTCEPSS rescore
  69. 2026-07-18 10:04 UTCEPSS rescore
  70. 2026-07-16 17:03 UTCEPSS rescore
  71. 2026-07-15 16:57 UTCEPSS rescore
  72. 2026-07-15 16:57 UTCEPSS rescore
  73. 2026-07-13 22:31 UTCEPSS rescore
  74. 2026-07-13 06:13 UTCEPSS rescore
  75. 2026-07-13 06:13 UTCEPSS rescore

Related CVEs(same product + same CWE)

Same product

3 shown

npm:@mariozechner/pi-coding-agent · npm:@earendil-works/pi-coding-agent

Frequently asked(5)

What is CVE-2026-54328?
CVE-2026-54328 is a high vulnerability published on June 17, 2026. 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…
When was CVE-2026-54328 disclosed?
CVE-2026-54328 was first published on June 17, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54328 actively exploited?
CVE-2026-54328 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54328?
CVE-2026-54328 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54328?
A fix for CVE-2026-54328 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54328 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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