CVE-2026-109428

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Source
https://cve.org/CVERecord?id=CVE-2026-109428
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109428.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-109428
Published
2026-10-13T18:17:05Z
Modified
2026-11-11T10:47:23Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Mistral Vibe < 2.25.5 Permission Bypass via Bash Line Continuation
Details

Mistral Vibe before 2.25.5 contains a permission validation bypass vulnerability that allows attackers to execute unauthorized commands by exploiting a parsing discrepancy between tree-sitter-bash and bash in handling backslash-newline line continuations in the _extract_commands() function of bash.py. Attackers can craft a command string where tree-sitter-bash extracts only an allowlisted prefix such as cd while bash joins the line continuation into a materially different and hidden command such as a curl request, causing resolve_permission to grant ALWAYS permission while bash executes unauthorized arbitrary commands.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-436"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109428.json"
}
References

Affected packages

Git / github.com/mistralai/mistral-vibe

Affected ranges

Type
GIT
Repo
https://github.com/mistralai/mistral-vibe
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c069ffa1e12fb5f2487b489217c40ab97721d553
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2.25.5"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "original_tag": "v2.25.5",
            "range": [
                {
                    "fixed": "c069ffa1e12fb5f2487b489217c40ab97721d553"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "range": [
                {
                    "fixed": "c069ffa1e12fb5f2487b489217c40ab97721d553"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2.25.5"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.2.0
v1.2.1
v1.2.2
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.3.5
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.1.0
v2.10.0
v2.10.1
v2.11.0
v2.11.1
v2.12.1
v2.13.0
v2.14.0
v2.14.1
v2.15.0
v2.16.0
v2.16.1
v2.17.0
v2.17.1
v2.18.0
v2.18.1
v2.18.2
v2.18.3
v2.18.4
v2.19.0
v2.19.1
v2.2.0
v2.2.1
v2.20.0
v2.21.0
v2.22.0
v2.23.0
v2.23.1
v2.23.2
v2.23.3
v2.24.0
v2.24.1
v2.24.2
v2.24.3
v2.24.4
v2.24.5
v2.25.0
v2.25.1
v2.25.2
v2.25.3
v2.25.4
v2.3.0
v2.4.0
v2.4.1
v2.4.2
v2.5.0
v2.6.0
v2.6.1
v2.6.2
v2.7.0
v2.7.1
v2.7.2
v2.7.3
v2.7.4
v2.7.5
v2.7.6
v2.8.0
v2.8.1
v2.9.0
v2.9.1
v2.9.2
v2.9.3
v2.9.4
v2.9.5
v2.9.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109428.json"