Understanding the TanStack Unspecified Vulnerability: CVE-2026-45321
The TanStack Unspecified Vulnerability, identified as CVE-2026-45321, is a critical security flaw that allowed malicious versions of TanStack to be published to the npm registry, enabling the distribution of credential-stealing malware under a trusted identity. This vulnerability has a severity score of 9 and is known to be exploited. Users are advised to apply mitigations as per vendor instructions or discontinue use if mitigations are unavailable.