VULNERABILITY INTELLIGENCE
CVE-2026-53970
CVSS score7.5 HIGH
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-08-14
Last modified2026-09-24
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
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.
Weakness classification
- disclosure@vulncheck.com: CWE-494