CVE-2026-5758

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Source
https://cve.org/CVERecord?id=CVE-2026-5758
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5758.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-5758
Aliases
Downstream
Related
Published
2026-04-15T17:20:13.551Z
Modified
2026-08-07T11:30:59.942893179Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
Summary
Mafintosh's protocol-buffers-schema is vulnerable to prototype pollution
Details

JavaScript is vulnerable to prototype pollution in Mafintosh's protocol-buffers-schema Version 3.6.0, where an attacker may alter the application logic, bypass security checks, cause a DoS or achieve remote code execution.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5758.json",
    "cna_assigner": "certcc"
}
References

Affected packages

Git / github.com/mafintosh/protocol-buffers-schema

Affected ranges

Type
GIT
Repo
https://github.com/mafintosh/protocol-buffers-schema
Events
Introduced
b901de0774f80ec00f3b07307a2cf5e13526800c
Fixed
46c34bd3199aa1e32374a1af59d02413b9ea197a
Database specific 
{
    "extracted_events": [
        {
            "introduced": "3.6.0"
        },
        {
            "fixed": "3.6.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v3.*
v3.6.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5758.json"