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@tanstack/react-router-ssr-query

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Critical, CVSS 9.6Exploited · CISA KEVnpmAmendedPublished

    Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys

    CVE-2026-45321 · GHSA-g7cv-rxg3-hmpx

    Affected
    • npm @tanstack/react-router-ssr-query >= 1.166.15, <= 1.166.15; >= 1.166.18, <= 1.166.18
    Fixed in
    1.166.19· Vendor fix available
    Issue
    On 2026-05-11, between approximately 19:20 and 19:26 UTC, 84 malicious versions across 42 @tanstack/ packages were published to the npm registry. The publishes were authenticated via the legitimate GitHub Actions OIDC trusted-publisher binding for TanStack/router, but the publish workflow itself was not modified. The attacker chained three known vulnerability classes — a pullrequesttarget "Pwn Request" misconfiguration, GitHub Actions cache poisoning across the fork↔base trust boundary, and runtime memory extraction of the OIDC token from the Actions runner process — to publish credential-stealing malware under a trusted identity. Each affected package received exactly two malicious versions, published a few minutes apart. Impact A user installing any affected version executes a payload (~2.3 MB obfuscated routerinit.js) at install time that: - Harvests credentials from common locations: - AWS instance metadata (IMDS) and Secrets Manager - GCP metadata service - Kubernetes…

    Recommended action: Upgrade to 1.166.19 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.com (1)cisa.gov (2)osv.dev (3)Source checked Evidence →