HIGH 7.5 NVD
CVE-2026-53970
ZeroBrew version 0.3.1 and prior contains a missing integrity verification vulnerability in the Ruby compatibility shim that allows network attackers to execute
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.
References
- https://github.com/lucasgelfond/zerobrew
- https://github.com/lucasgelfond/zerobrew/commit/89a60b73c7edd6b662e2a085be3d981b6ebeb1aa
- https://www.vulncheck.com/advisories/zerobrew-version-and-prior-missing-checksum-verificat
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-08-14 via NVD.
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