CVE-2026-53970

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Source

https://cve.org/CVERecord?id=CVE-2026-53970

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53970.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-53970

Published

2026-08-14T15:32:29.878Z

Modified

2026-08-16T03:48:29.911514093Z

Severity

7.5 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

ZeroBrew version 0.3.1 and prior Missing Checksum Verification RCE via shim.rb

Details

ZeroBrew version 0.3.1 and prior contains a missing integrity verification vulnerability in the Ruby compatibility shim that allows network attackers to execute arbitrary code by substituting malicious content at formula resource or URL-based patch URLs without checksum validation. Attackers can intercept or replace downloads for secondary resource and patch paths in shim.rb, injecting attacker-controlled build steps or source tree modifications that execute during source builds via 'zb install --build-from-source' without any integrity warning.

Database specific

{
    "cwe_ids": [
        "CWE-494"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53970.json",
    "cna_assigner": "VulnCheck"
}

References

Affected packages

Git / github.com/lucasgelfond/zerobrew

Affected ranges

Type

GIT

Repo

https://github.com/lucasgelfond/zerobrew

Events

Introduced

Fixed

89a60b73c7edd6b662e2a085be3d981b6ebeb1aa

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.3.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*

v0.1.1

v0.1.2

v0.2.0

v0.2.1

v0.3.0

v0.3.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53970.json"