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Vulnerability record · CVE-2026-87983 · published 11 September 2026

CVE-2026-87983: Path traversal vulnerability

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.

9.2 CVSS 4.0 Critical EPSS 0.62% · top 52.2% CWE-22 · Path traversal Deferred
9.2CVSS 4.0 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
11 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/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:

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-87983), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.