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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (55.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/mistralai/mistral-vibe/issues/996 (issue-tracking)
- github.com/mistralai/mistral-vibe/commit/c069ffa1e12fb5f2487b489217c40ab97721d5… (patch)
- github.com/mistralai/mistral-vibe/releases/tag/v2.25.5 (release-notes)
- github.com/mistralai/mistral-vibe/blob/19b5b74faa78d0816b8d4d4c7d7543fc3520678c… (technical-description)
- github.com/mistralai/mistral-vibe (product)
- www.vulncheck.com/advisories/mistral-vibe-before-2.25.5-remote-code-execution-v… (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.