CVE-2026-87984: critical vulnerability in mistralai mistral-vibe
Published
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.5%
An arbitrary file write vulnerability in Mistral Vibe, introduced in version 1.3.4, allows an attacker to create or overwrite files outside the active workspace without user approval. Shell redirection destinations are omitted from permission checks, enabling otherwise allowlisted commands to write to arbitrary paths accessible to the Vibe process.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
mistralai · mistral-vibeRelated CVEs — mistralai mistral-vibe
In the same product, most dangerous first.
CVE-2026-67623HIGHMistral Vibe < 2.23.3 Arbitrary Command Execution via git fsmonitor HookEPSS 1.1%CVE-2026-93993HIGHMistral Vibe before 2.25.5 Remote Code Execution via git post-checkoutEPSS 0.8%CVE-2026-87983CRITICALCVE-2026-87983EPSS 0.6%CVE-2026-87987CRITICALCVE-2026-87987EPSS 0.6%CVE-2026-87986CRITICALCVE-2026-87986EPSS 0.6%CVE-2026-87985CRITICALCVE-2026-87985EPSS 0.6%