HighVulnerability

CVE-2026-122135: Mistral Vibe remote code execution via repository gpg.program setting

Source: NVD(opens in a new tab)
Identifier: CVE-2026-122135
Published: November 4, 2026
Record updated: November 4, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.

Summary

Mistral Vibe before 3.0.3 contains a remote code execution vulnerability in project context collection. A crafted repository that sets gpg.program and log.showSignature, combined with a signed commit, causes git log to run the attacker's program at session start, before any trust prompt.

Mitigation

Fixed in 3.0.3 (the source states Mistral Vibe before 3.0.3 is affected; the upgrade to 3.0.3 or later is implied by that version boundary).

Details

Scores and exploitation

CVSS score: 8.8(high)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector: network
Attack complexity: low
Privileges required: none
User interaction: required
EPSS: Not scored. FIRST had not published an EPSS score for this CVE when it was last checked on November 4, 2026.
Disclosure date: November 4, 2026

Weaknesses and techniques

Weakness (CWE): CWE-829
Attack pattern (CAPEC): CAPEC-437

Affected

Vendors: Mistral

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Agent
Impact: Confidentiality,
Integrity
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-122135

First tracked: November 4, 2026 at 07:10 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 85% (self-assessed)

Summary

Mitigation

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