原文の説明
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.
悪用確認済み（CISA KEV）
- KEV 追加日
- 2026-05-27
- 対応期限（米連邦機関）
- 2026-06-10
- ランサムウェアでの使用
- Known
- 必要な対応
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
詳細
- 公開日
- 2026-05-12
- 最終更新
- 2026-08-04
- CVSS ベクター
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H- CWE
- CWE-506
- EPSS（30日以内の悪用確率）
- 3.28% (パーセンタイル 89)
参考資料
- 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...
本製品は NVD API のデータを使用していますが、NVD による承認または認定を受けたものではありません。CVE® は The MITRE Corporation の登録商標です。CVE レコードは CVE Program の利用規約に基づいて使用しています。