CrowdSec had kept his GitHub access open so he could finish some work, and says his laptop was compromised in May's TanStack npm supply-chain attack, in which 84 malicious versions of 42 packages (CVE-2026-45321) stole GitHub tokens, SSH keys and cloud credentials from developers' machines.

NVD description

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.