VulnCheck KEV: CVE-2026-45321

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...

CVE-2026-45321

CVE-2026-45321 is a real npm supply-chain attack affecting 42 TanStack packages where 84 malicious releases were published within ~6 minutes using a legitimate GitHub Actions OIDC trusted-publisher binding. The malicious router_init.js payload exfiltrated credentials (GitHub tokens, cloud keys, S...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential stealer worm. A malicious actor managed to extract a GitHub Actions OIDC token from the runner process and publish tampered versions of 42 @tanstack/ packages to npm, which then spread ...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential stealer worm. A malicious actor managed to extract a GitHub Actions OIDC token from the runner process and publish tampered versions of 42 @tanstack/ packages to npm, which then spread ...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential stealer worm. A malicious actor managed to extract a GitHub Actions OIDC token from the runner process and publish tampered versions of 42 @tanstack/ packages to npm, which then spread ...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential stealer worm. A malicious actor managed to extract a GitHub Actions OIDC token from the runner process and publish tampered versions of 42 @tanstack/ packages to npm, which then spread ...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential stealer worm. A malicious actor managed to extract a GitHub Actions OIDC token from the runner process and publish tampered versions of 42 @tanstack/ packages to npm, which then spread ...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential stealer worm. A malicious actor managed to extract a GitHub Actions OIDC token from the runner process and publish tampered versions of 42 @tanstack/ packages to npm, which then spread ...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential stealer worm. A malicious actor managed to extract a GitHub Actions OIDC token from the runner process and publish tampered versions of 42 @tanstack/ packages to npm, which then spread ...