by Kastro
Paper/Archive/CVE-2026-44444

CVE-2026-44444

prolix-oc Lumiverse — Lumiverse: Spindle extension install runs untrusted lifecycle scripts before security scan

EPSS 0.4%public exploitCVSS 9.1
critical.is priorityof 100
44
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 30.9.309 × 206.2Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Lumiverse is a full-featured AI chat application. Prior to 0.9.7, the Spindle extension build pipeline calls bun install without the --ignore-scripts flag before running the static backend safety scan (assertSafeBackendBundle). A malicious extension that ships a package.json with a preinstall, postinstall, or prepare lifecycle script achieves host-level code execution the moment an admin presses Install before any dist file is inspected. This vulnerability is fixed in 0.9.7.

Affected

ProductAffectedFixed inSource
Lumiverse< 0.9.7–CNA

Scores by source

GitHub_M (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/prolix-oc/Lumiverse/security/advisories/GHSA-8x98-3wjp-pmj9