What is CVE-2026-93993?

CVE-2026-93993 is a high-severity vulnerability in Mistralai Mistral-Vibe, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 8.8/10. Published 2026-09-19.

How severe is CVE-2026-93993?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Mistralai Mistral-Vibe

CVE-2026-93993

Mistral Vibe before 2.25.5 contains a remote code execution vulnerability in the worktree creation process that executes git hooks before trust validation. Attackers can supply a repository with a crafted post-checkout hook that executes arbitrary shell commands with the privileges of the user running Vibe.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Mistralai Mistral-vibe

Weakness classification (CWE)

CWE-829 — Inclusion of Functionality from Untrusted Control Sphere

References

disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-93993?: CVE-2026-93993 is a high-severity vulnerability in Mistralai Mistral-Vibe, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 8.8/10. Published 2026-09-19.
How severe is CVE-2026-93993?: High severity. CVSS v3 base score is 8.8 out of 10.