High severity · published Oct 27, 2026
CVE-2026-116843
Mistral Vibe before 3.0.3 RCE via Git Filter Drivers in Worktree Mode
New
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MI
mistral-vibe · mistralai
before 3.0.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116843
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116843
github.com
https://github.com/mistralai/mistral-vibe/blob/v2.24.1/vibe/core/worktree.py#L303-L317
github.com
https://github.com/mistralai/mistral-vibe/commit/7bb48f213ac677f943d5c791199ed3dddf302f00
github.com
https://github.com/mistralai/mistral-vibe/issues/997
github.com
https://github.com/mistralai/mistral-vibe/releases/tag/v3.0.3
www.vulncheck.com
https://www.vulncheck.com/advisories/mistral-vibe-before-3.0.3-rce-via-git-filter-drivers-in-worktree-mode
More from mistral-vibe
10.0
CVE-2026-87988
An arbitrary file access vulnerability in Mistral Vibe allows an attacker to bypass workspace restrictions through commands classified as unconditionally allowed
10.0
CVE-2026-87987
An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using environment variable assignments preceding allowlisted…
10.0
CVE-2026-87986
An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using shell constructs it's parser cannot interpret
10.0
CVE-2026-87985
An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using ANSI-C quoted arguments
9.3
CVE-2026-87984
An arbitrary file write vulnerability in Mistral Vibe, introduced in version 1.3.4, allows an attacker to create or overwrite files outside the active workspace without user…