Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys
Affected range
SEMVER: introduced 1.166.51; fixed 1.166.55SEMVER: introduced 1.166.54; fixed 1.166.55Fixed versions: 1.166.55
@tanstack/react-start-client
Modern and scalable routing for React applications
npm latest 1.168.36 MIT
Evidence path
Version, exploitation, severity
RequestGuard keeps these facts separate. A KEV match refers to a CVE, while OSV supplies the package and version match.
1
Latest version
1.168.36
No matching published advisory returned
2
Known exploitation
No KEV match
Checked by exact CVE identifier
3
Highest advisory severity
Critical
2 active advisories
Check an exact version
The registry confirms the version, then OSV checks advisories for that exact value.
Published records
Advisories
MAL-2026-3469 unknown