@join-com/jest-matchers (>=1.0.0 <=1.0.1) potentially affected by unknown CVE via jest-expect (=0.0.1)

jest-expect NPM version =0.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on jest-expect and may be impacted: - @join-com/jest-matchers =1.0.0, =1.0.1 Source cves: unknown CVE Source advisory: OSV:MAL-2026-4139...

@join-com/jest-matchers (>=1.0.0 <=1.0.1), jest-expect (=0.0.1) +1 more potentially affected by unknown CVE via fixed-round (=1.0.2)

fixed-round NPM version =1.0.2 is affected by a known vulnerability. The following packages have a transitive dependency on fixed-round and may be impacted: - @join-com/jest-matchers =1.0.0, =0.0.1, =0.0.2 Source cves: unknown CVE Source advisory: OSV:MAL-2026-4134...

Malicious code in jest-expect (npm)

Part of the Mini Shai-Hulud supply chain attack campaign in which a threat actor compromised the npm account atool and published 631 malicious versions across 314 npm packages in an automated 22-minute burst. Each malicious version injects a preinstall hook that executes a 498KB obfuscated Bun...