Oct 19, 2026 · 14:12 UTC SEARCH
UNRATED KNOWN EXPLOITED RANSOMWARE USE
Vulnerability intelligence

CVE-2026-45321

VendorTanStack
ProductTanStack
Known exploitedYes
Added to CISA KEVMay 27, 2026
KEV due dateJune 10, 2026
Known ransomware useKnown

TanStack contains an unspecified vulnerability that allowed malicious versions of the product to be published to the npm registry to publish credential-stealing malware under a trusted identity.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA KEV status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities Catalog. Known ransomware campaign use: Known.

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