Vulnerability details
CVE-2026-87986
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 shell constructs it's parser cannot interpret. Unparsed portions are omitted from inspection, enabling embedded commands to execute on the user's system without 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 | 1.3.4 ≤ 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-228Improper Handling of Syntactically Invalid Structure