CVE-2026-87983

CriticalCVSS 9.2/10Last modified Sep 11, 2026

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.

Metrics

CVSS 4.0 9.2/10CVSS: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:X/V:X/RE:X/U:X

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Sep 11, 2026
Last modified
Sep 11, 2026
NVD status
Deferred

Related CVEs from 2026

CVE-2026-879849.3An arbitrary file write vulnerability in Mistral Vibe, introduced in version 1.3.4, allows an attacker to create or overwrite files outside CVE-2026-8798510.0An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using ANSI-C quoted argumenCVE-2026-8798610.0An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using shell constructs it'sCVE-2026-8798710.0An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using environment variable CVE-2026-8798810.0An arbitrary file access vulnerability in Mistral Vibe allows an attacker to bypass workspace restrictions through commands classified as unCVE-2026-879937.7The consul-template library is vulnerable to an information disclosure issue in its error handling path that may allow Vault secret values tCVE-2026-879944.3Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chat_coCVE-2026-879958.7Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.11 until 0.11.1, src/lib/components/chat/FileCVE-2026-879967.7Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.1, SafePlaywrightURLLoader in baCVE-2026-879974.3Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/chat/completions aCVE-2026-879987.1Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/{idCVE-2026-879997.1Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.11.1, POST /api/v1/retrieval/process/web an
CVE-2026-87983: Critical severity, CVSS 9.2 | Vulnix