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
2026-08-14T15:32:29Z
Modified
2026-10-28T02:31:11Z
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 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-494"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53970.json"
}
References

Affected packages

Git / github.com/zerobrewhq/zerobrew

Affected ranges

Type
GIT
Repo
https://github.com/zerobrewhq/zerobrew
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
89a60b73c7edd6b662e2a085be3d981b6ebeb1aa
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "0.3.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "fixed": "89a60b73c7edd6b662e2a085be3d981b6ebeb1aa"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

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"