CVE-2026-53970
7.5
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| lucasgelfond | ZeroBrew | 0 <= 0.3.1 | affected |
Weaknesses
- CWE-494: Download of Code Without Integrity Check
References
- https://github.com/lucasgelfond/zerobrew
- https://github.com/lucasgelfond/zerobrew/commit/89a60b73c7edd6b662e2a085be3d981b6ebeb1aa
- https://www.vulncheck.com/advisories/zerobrew-version-and-prior-missing-checksum-verification-rce-via-shim-rb
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