CVE-2026-87987

critical · 10

An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using environment variable assignments preceding allowlisted commands. These assignments are excluded from inspection, enabling attacker-controlled environment variables to cause arbitrary code execution without user approval.

CVSS

0.6%

EPSS (exploit prob.)

47th

EPSS percentile

2026-09-11

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-15

References

https://www.hiddenlayer.com/sai-security-advisory/2026-09-mistral-vibe5

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-87987