CVE-2026-116843: mistralai mistral-vibe (High, CVSS 8.7)

Remote Attacker
CVE-2026-116843Highmistralai mistral-vibe
CVSS
8.7 High (v4.0)
EPSS
0.4% chance of exploitation in the next 30 days (higher than 37.4% of CVEs)
Exploited in the wild
Not on CISA’s KEV list
Public exploit
None reported in public exploit databases
Weakness
CWE-829
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Published
Oct 27, 2026

What it is

Mistral Vibe before 3.0.3 contains a remote code execution vulnerability that allows attackers to run commands by defining git filter drivers in an untrusted repository's .git/config. When started with --worktree, git worktree add applies .gitattributes and runs filter smudge, clean, or process commands before the trusted-folder check, executing attacker commands with user privileges.

Description from the National Vulnerability Database.

What to do

Check whether you run mistralai mistral-vibe, then apply the vendor’s fix or mitigation from the advisories below.

Sources: NVD, FIRST EPSS, CISA KEV, and public exploit databases (availability only). ThreatRoundup reports whether public exploit code exists but never links to it: fake proof-of-concepts that infect security researchers are common. This page updates automatically.