CVE-2026-45321

Descripción original

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.

Detalles

Publicación

2026-05-12

Última modificación

2026-08-04

Vector CVSS

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CWE

CWE-506

EPSS (probabilidad de explotación en 30 días)

3.28% (percentil 89)

Referencias

• cve.org/CVE-2026-45321
• nvd.nist.gov/vuln/detail/CVE-2026-45321
• github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpx
• github.com/TanStack/router/issues/7383
• tanstack.com/blog/npm-supply-chain-compromise-postmortem
• www.stepsecurity.io/blog/mini-shai-hulud-is-back-a-self-spreading-supply-chain-attack-hits...