CVE-2026-67623: mistralai mistral-vibe

Mistral Vibe < 2.23.3 Arbitrary Command Execution via git fsmonitor Hook

CVSS 8.6 HighEPSS 0.011 · 64th percentile

Published by the CVE Program (CNA: VulnCheck) at 5 Aug 2026, 13:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
mistralai	mistral-vibe pkg:github/mistralai/mistral-vibe	affected before 2.23.3 semver Other versions: affected

Identifiers

CVE-2026-67623

CNA

VulnCheck

Weakness (CWE)

CWE-829

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.6	High	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
8.8	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.011, the 64th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 5 Aug 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/mistralai/mistral-vibe/releases/tag/v2.23.3 release-notes
github.com/mistralai/mistral-vibe/pull/962 issue-tracking
github.com/mistralai/mistral-vibe/pull/978 issue-tracking
github.com/mistralai/mistral-vibe/commit/68ff32e6a92e80a874c8153312f0aa8ae4955477 patch
www.vulncheck.com/advisories/mistral-vibe-arbitrary-command-execution-via-git-fsmonitor-hook third-party-advisory
therealcoiffeur.com/c111011.html technical-descriptionexploit
github.com/mistralai/mistral-vibe/issues/942 technical-descriptionexploit

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.