Paper/Archive/CVE-2026-87983

CVE-2026-87983

mistralai mistral-vibe — An arbitrary file read vulnerability in Mistral Vibe, introduced in version 2.6.0, allows an attacker to bypass workspace restrictions us…

EPSS 0.6%CVSS 9.2

critical.is priorityof 100

CVSS 9.2 (CNA)9.2 / 10 × 3027.6 Not in CISA KEV+300.0 EPSS percentile 49.9.499 × 2010.0 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

An arbitrary file read vulnerability in Mistral Vibe, introduced in version 2.6.0, allows an attacker to bypass workspace restrictions using quoted absolute paths in allowlisted shell commands. Improper handling of quotation marks during path validation enables files outside the active workspace to be read without user approval.

Affected

ProductAffectedFixed inSource

mistral-vibe2.6.0 – *–CNA

Scores by source

HiddenLayer (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

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