by Kastro
Paper/Archive/CVE-2026-87988

CVE-2026-87988

mistralai mistral-vibe — An arbitrary file access vulnerability in Mistral Vibe allows an attacker to bypass workspace restrictions through commands classified as…

EPSS 0.4%CVSS 10.0
critical.is priorityof 100
38
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 37.3.373 × 207.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

An arbitrary file access vulnerability in Mistral Vibe allows an attacker to bypass workspace restrictions through commands classified as unconditionally allowed. Missing path validation for these commands enables access to files outside the active workspace without user approval.

Affected

ProductAffectedFixed inSource
mistral-vibe2.15.0 – *–CNA

Scores by source

HiddenLayer (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refhiddenlayer.com/sai-security-advisory/2026-09-mistral-vibe6