{"id":78296,"date":"2026-05-12T04:46:46","date_gmt":"2026-05-12T01:16:46","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-45321-malware-in-42-tanstack-packages-exfiltrates-cloud-credentials-github-tokens-and-ssh-keys\/"},"modified":"2026-05-12T04:46:46","modified_gmt":"2026-05-12T01:16:46","slug":"cve-2026-45321-malware-in-42-tanstack-packages-exfiltrates-cloud-credentials-github-tokens-and-ssh-keys","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-45321-malware-in-42-tanstack-packages-exfiltrates-cloud-credentials-github-tokens-and-ssh-keys\/","title":{"rendered":"CVE-2026-45321 &#8211; Malware in 42 @tanstack\/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys"},"content":{"rendered":"<p>CVE ID :CVE-2026-45321<\/p>\n<p>  Published : May 12, 2026, 1:16 a.m. | 41\u00a0minutes ago<\/p>\n<p>  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 \u2014 a pull_request_target &#8220;Pwn Request&#8221; misconfiguration, GitHub Actions cache poisoning across the fork\u2194base trust boundary, and runtime memory extraction of the OIDC token from the Actions runner process \u2014 to publish credential-stealing malware under a trusted identity. Each affected package received exactly two malicious versions, published a few minutes apart.<\/p>\n<p>  Severity: 9.6 | CRITICAL<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-45321 Published : May 12, 2026, 1:16 a.m. | 41\u00a0minutes ago 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 &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-78296","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=78296"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78296\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=78296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=78296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=78296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}