Vulnerability details
CVE-2026-87987
mistralai mistral-vibe
CVSS 4.0
10.0Critical
Official description
An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using environment variable assignments preceding allowlisted commands. These assignments are excluded from inspection, enabling attacker-controlled environment variables to cause arbitrary code execution without user approval.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 4.0 | CVEProject cvelistV5 (CNA) (HiddenLayer) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| mistralai | mistral-vibe | 2.6.0 ≤ v | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-09-11
- Last updated
- 2026-09-11
- State
- Published
- Assigner (CNA)
- HiddenLayer
Exploit prediction (EPSS)
0.56%
Probability of exploitation in 30 days
47%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-15External control of system or configuration setting