CVE-2026-122135

Mistral Vibe before 3.0.3 RCE via Repository-Configured gpg.program

8.6 High

Mistral Vibe before 3.0.3 contains a remote code execution vulnerability that allows attackers to run commands by abusing repository-configured gpg.program during project context collection. A crafted repository setting gpg.program and log.showSignature with a signed commit makes git log execute the attacker's program at session start, before any trust prompt.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Active

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.47%Unchanged since Nov 5, 2026

What each source reports

CVE List Score used 8.6

Mistral Vibe before 3.0.3 RCE via Repository-Configured gpg.program

Record: CVE-2026-122135
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-829
Updated: 2026-11-04

EUVDEUVD-2026-117089 8.6

Record: EUVD-2026-117089
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-05

GitHub AdvisoriesGHSA-qx7j-gch3-gv7c 8.6

Mistral Vibe before 3.0.3 contains a remote code execution vulnerability that allows attackers to...

Record: GHSA-qx7j-gch3-gv7c
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-829
Updated: 2026-11-04

NVD 8.6

Record: CVE-2026-122135
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-829
Updated: 2026-11-04

OSV 8.6

Mistral Vibe before 3.0.3 RCE via Repository-Configured gpg.program

Record: CVE-2026-122135
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness: CWE-829
Updated: 2026-11-05

Affected products

mistralai mistral-vibe

History

History
Recorded	Changed	Sources
Nov 5, 2026	references	OSV
Nov 5, 2026	published	EUVD
Nov 4, 2026	published	EUVD, NVD
Nov 4, 2026	aliases, published	EUVD
Nov 4, 2026	first indexed	CVE List, GitHub Advisories

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-122135 is a high vulnerability (CVSS 8.6) in Mistralai Mistral-vibe, published November 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. No source names a fixed version.