CVE-2026-45321

CVE-2026-45321 · Malware in 42 @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys

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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 pull_request_target "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.

CVSS 9.6 · Crítica · EPSS 3,3% · En el catálogo KEV · Corrección disponible

Publicación

2026-05-12T00:12:35.452Z

Actualización

2026-08-04T03:56:09.005Z

Pila tecnológica: node

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