Known Exploited Vulnerability: CVE-2026-45321

Vendor: TanStack

Product: TanStack

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.

Known ransomware campaign use: Known

Notes: This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpx https://nvd.nist.gov/vuln/detail/CVE-2026-45321