CVE-2026-67623: Mistral Vibe before 2.23.3 contains a remote code execution vulnerability that allows attackers to execute arb

This month

HIGH 8.8

CVE-2026-67623 is a high-severity flaw (CVSS 8.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Mistral Vibe before 2.23.3 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands by embedding a malicious core.fsmonitor hook in a repository's .git/config file, which is triggered when vibe invokes git status --porcelain without suppressing hook execution. Attackers can distribute or create a crafted repository containing a malicious fsmonitor entry to achieve arbitrary command execution with the vict

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.1% (top 36%)
CISA exploited list	No
Weakness	CWE-829
Published	2026-08-05
Last modified	2026-10-23

Publisher (CNA): VulnCheck

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-08-05 14:17 UTCPublished CVE record published
2026-10-23 21:10 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · rubygem-eventmachine · FIXED · 1.2.7-37.fc46 · FEDORA-2026-7194c202a2 · source

sudo dnf upgrade --advisory=FEDORA-2026-7194c202a2

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/mistralai/mistral-vibe/issues/942
Write-up: github.com/mistralai/mistral-vibe/pull/962
Write-up: therealcoiffeur.com/c111011.html

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-67623?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-67623 being exploited?

CVE-2026-67623 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-67623 affect?

CVE-2026-67623 affects affected software. Severity is high (CVSS 8.8). Mistral Vibe before 2.23.3 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands by embedding a malicious core.fsmonitor hook in a repository's .git/config file, which is triggered when vibe invo

How urgent is CVE-2026-67623?

Priority 47/100. High severity

Software pages

Git vulnerabilities

References

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