Exploited vulnerability

CVE-2026-45321

TLP:CLEAR

TanStack Unspecified Vulnerability

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.

Facts

Vendor: TanStack
Product: TanStack
CVSS: 9.6
EPSS (probability of exploitation within 30 days): 3.3 %
On CISA's Known Exploited Vulnerabilities list since: 27 May 2026
First known exploitation: 27 May 2026
Used in ransomware campaigns (per CISA): Yes
CISA's deadline for US federal agencies: 10 June 2026
First seen by Risk Letters: 12 May 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD