Vulnary
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Critical· 10

CVE-2026-87988

Mistral Vibe has a flaw that lets attackers read or write any file on the server, ignoring workspace boundaries. The bug is caused by missing path validation for commands that are always allowed. Because the attacker can access critical files, the vulnerability is rated as critical.

publishedSep 11, 2026
last modifiedSep 11, 2026
sourcesNVD
severity · cvss
10
critical · how bad it is
exploitation · epss
<1%
17th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Oct 26, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

Mistral Vibe (any version, as no specific versions are listed).

02

Real-world impact

An attacker could read sensitive configuration files, modify application data, or inject malicious code by accessing files outside the intended workspace, potentially taking full control of the system.

03

Why this severity

The CVSS score of 10 reflects that the vulnerability is exploitable over the network, requires no user interaction, and gives the attacker complete control over the system, with high confidentiality, integrity, and availability impact.

04

What to do about it

no official fix yet

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsNone
Privileges requiredNone
User interactionNone needed
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →