CVE-2026-45321 (GCVE-0-2026-45321)
Vulnerability from cvelistv5
Published
2026-05-12 00:12
Modified
2026-08-04 03:56
Severity ?
CWE
  • CWE-506 - Embedded Malicious Code
Summary
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.
Impacted products
Vendor Product Version
@tanstack arktype-adapter Version: 1.166.12
Version: 1.166.15
Create a notification for this product.
   @tanstack eslint-plugin-router Version: 1.161.9
Version: 1.161.12
Create a notification for this product.
   @tanstack eslint-plugin-start Version: 0.0.4
Version: 0.0.7
Create a notification for this product.
   @tanstack history Version: 1.161.9
Version: 1.161.12
Create a notification for this product.
   @tanstack nitro-v2-vite-plugin Version: 1.154.12
Version: 1.154.15
Create a notification for this product.
   @tanstack react-router Version: 1.169.5
Version: 1.169.8
Create a notification for this product.
   @tanstack react-router-devtools Version: 1.166.16
Version: 1.166.19
Create a notification for this product.
   @tanstack react-router-ssr-query Version: 1.166.15
Version: 1.166.18
Create a notification for this product.
   @tanstack react-start Version: 1.167.68
Version: 1.167.71
Create a notification for this product.
   @tanstack react-start-client Version: 1.166.51
Version: 1.166.54
Create a notification for this product.
   @tanstack react-start-rsc Version: 0.0.47
Version: 0.0.50
Create a notification for this product.
   @tanstack react-start-server Version: 1.166.55
Version: 1.166.58
Create a notification for this product.
   @tanstack router-cli Version: 1.166.46
Version: 1.166.49
Create a notification for this product.
   @tanstack router-core Version: 1.169.5
Version: 1.169.8
Create a notification for this product.
   @tanstack router-devtools Version: 1.166.16
Version: 1.166.19
Create a notification for this product.
   @tanstack router-devtools-core Version: 1.167.6
Version: 1.167.9
Create a notification for this product.
   @tanstack router-generator Version: 1.166.45
Version: 1.166.48
Create a notification for this product.
   @tanstack router-plugin Version: 1.167.38
Version: 1.167.41
Create a notification for this product.
   @tanstack router-ssr-query-core Version: 1.168.3
Version: 1.168.6
Create a notification for this product.
   @tanstack router-utils Version: 1.161.11
Version: 1.161.14
Create a notification for this product.
   @tanstack outer-vite-plugin Version: 1.166.53
Version: 1.166.56
Create a notification for this product.
   @tanstack solid-router Version: 1.169.5
Version: 1.169.8
Create a notification for this product.
   @tanstack solid-router-devtools Version: 1.166.16
Version: 1.166.19
Create a notification for this product.
   @tanstack solid-router-ssr-query Version: 1.166.15
Version: 1.166.18
Create a notification for this product.
   @tanstack solid-start Version: 1.167.65
Version: 1.167.68
Create a notification for this product.
   @tanstack solid-start-client Version: 1.166.50
Version: 1.166.53
Create a notification for this product.
   @tanstack solid-start-server Version: 1.166.54
Version: 1.166.57
Create a notification for this product.
   @tanstack start-client-core Version: 1.168.5
Version: 1.168.8
Create a notification for this product.
   @tanstack start-fn-stubs Version: 1.161.9
Version: 1.161.12
Create a notification for this product.
   @tanstack start-plugin-core Version: 1.169.23
Version: 1.169.26
Create a notification for this product.
   @tanstack start-server-core Version: 1.167.33
Version: 1.167.36
Create a notification for this product.
   @tanstack start-static-server-functions Version: 1.166.44
Version: 1.166.47
Create a notification for this product.
   @tanstack start-storage-context Version: 1.166.38
Version: 1.166.41
Create a notification for this product.
   @tanstack valibot-adapter Version: 1.166.12
Version: 1.166.15
Create a notification for this product.
   @tanstack virtual-file-routes Version: 1.161.10
Version: 1.161.13
Create a notification for this product.
   @tanstack vue-router Version: 1.169.5
Version: 1.169.8
Create a notification for this product.
   @tanstack vue-router-devtools Version: 1.166.16
Version: 1.166.19
Create a notification for this product.
   @tanstack vue-router-ssr-query Version: 1.166.15
Version: 1.166.18
Create a notification for this product.
   @tanstack vue-start Version: 1.167.61
Version: 1.167.64
Create a notification for this product.
   @tanstack vue-start-client Version: 1.166.46
Version: 1.166.49
Create a notification for this product.
   @tanstack vue-start-server Version: 1.166.50
Version: 1.166.53
Create a notification for this product.
   @tanstack zod-adapter Version: 1.166.12
Version: 1.166.15
Create a notification for this product.
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2026-05-27

Due date: 2026-06-10

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Used in ransomware: Known

Notes: This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpx ; https://nvd.nist.gov/vuln/detail/CVE-2026-45321

Show details on NVD website


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          "vendor": "@tanstack",
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          ]
        },
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          "vendor": "@tanstack",
          "versions": [
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              "status": "affected",
              "version": "1.166.51"
            },
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          ]
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          "vendor": "@tanstack",
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          "vendor": "@tanstack",
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          "vendor": "@tanstack",
          "versions": [
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          "vendor": "@tanstack",
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        {
          "product": "router-generator",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.45"
            },
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              "status": "affected",
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        {
          "product": "router-plugin",
          "vendor": "@tanstack",
          "versions": [
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          "product": "router-ssr-query-core",
          "vendor": "@tanstack",
          "versions": [
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            },
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          "vendor": "@tanstack",
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          "vendor": "@tanstack",
          "versions": [
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              "version": "1.166.53"
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          "product": "solid-router",
          "vendor": "@tanstack",
          "versions": [
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              "version": "1.166.18"
            }
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          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.167.65"
            },
            {
              "status": "affected",
              "version": "1.167.68"
            }
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        {
          "product": "solid-start-client",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.50"
            },
            {
              "status": "affected",
              "version": "1.166.53"
            }
          ]
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        {
          "product": "solid-start-server",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.54"
            },
            {
              "status": "affected",
              "version": "1.166.57"
            }
          ]
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          "product": "start-client-core",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.168.5"
            },
            {
              "status": "affected",
              "version": "1.168.8"
            }
          ]
        },
        {
          "product": "start-fn-stubs",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.161.9"
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              "version": "1.161.12"
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        {
          "product": "start-plugin-core",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.169.23"
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            }
          ]
        },
        {
          "product": "start-server-core",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.167.33"
            },
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              "status": "affected",
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            }
          ]
        },
        {
          "product": "start-static-server-functions",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.44"
            },
            {
              "status": "affected",
              "version": "1.166.47"
            }
          ]
        },
        {
          "product": "start-storage-context",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.38"
            },
            {
              "status": "affected",
              "version": "1.166.41"
            }
          ]
        },
        {
          "product": "valibot-adapter",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.12"
            },
            {
              "status": "affected",
              "version": "1.166.15"
            }
          ]
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        {
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          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.161.10"
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              "status": "affected",
              "version": "1.161.13"
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          ]
        },
        {
          "product": "vue-router",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.169.5"
            },
            {
              "status": "affected",
              "version": "1.169.8"
            }
          ]
        },
        {
          "product": "vue-router-devtools",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.16"
            },
            {
              "status": "affected",
              "version": "1.166.19"
            }
          ]
        },
        {
          "product": "vue-router-ssr-query",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.15"
            },
            {
              "status": "affected",
              "version": "1.166.18"
            }
          ]
        },
        {
          "product": "vue-start",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.167.61"
            },
            {
              "status": "affected",
              "version": "1.167.64"
            }
          ]
        },
        {
          "product": "vue-start-client",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.46"
            },
            {
              "status": "affected",
              "version": "1.166.49"
            }
          ]
        },
        {
          "product": "vue-start-server",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.50"
            },
            {
              "status": "affected",
              "version": "1.166.53"
            }
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          "product": "zod-adapter",
          "vendor": "@tanstack",
          "versions": [
            {
              "status": "affected",
              "version": "1.166.12"
            },
            {
              "status": "affected",
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        }
      ],
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.6,
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            "confidentialityImpact": "HIGH",
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      "cveID": "CVE-2026-45321",
      "dateAdded": "2026-05-27",
      "dueDate": "2026-06-10",
      "forensicTriage": "No",
      "knownRansomwareCampaignUse": "Known",
      "notes": "This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpx ; https://nvd.nist.gov/vuln/detail/CVE-2026-45321",
      "product": "TanStack",
      "requiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
      "shortDescription": "TanStack contains an unspecified vulnerability that allowed malicious versions of the product to be published to the npm registry to publish credential-stealing malware under a trusted identity.",
      "vendorProject": "TanStack",
      "vulnerabilityName": "TanStack Unspecified Vulnerability"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-45321\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-27T17:49:15.052599Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2026-05-27\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45321\"}}}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45321\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-12T13:21:29.648Z\"}, \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-05-27T00:00:00.000Z\", \"value\": \"CVE-2026-45321 added to CISA KEV\"}]}], \"cna\": {\"title\": \"Malware in 42 @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys\", \"source\": {\"advisory\": \"GHSA-g7cv-rxg3-hmpx\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 9.6, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"@tanstack\", \"product\": \"arktype-adapter\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.12\"}, {\"status\": \"affected\", \"version\": \"1.166.15\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"eslint-plugin-router\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.161.9\"}, {\"status\": \"affected\", \"version\": \"1.161.12\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"eslint-plugin-start\", \"versions\": [{\"status\": \"affected\", \"version\": \"0.0.4\"}, {\"status\": \"affected\", \"version\": \"0.0.7\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"history\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.161.9\"}, {\"status\": \"affected\", \"version\": \"1.161.12\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"nitro-v2-vite-plugin\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.154.12\"}, {\"status\": \"affected\", \"version\": \"1.154.15\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"react-router\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.169.5\"}, {\"status\": \"affected\", \"version\": \"1.169.8\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"react-router-devtools\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.16\"}, {\"status\": \"affected\", \"version\": \"1.166.19\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"react-router-ssr-query\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.15\"}, {\"status\": \"affected\", \"version\": \"1.166.18\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"react-start\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.167.68\"}, {\"status\": \"affected\", \"version\": \"1.167.71\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"react-start-client\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.51\"}, {\"status\": \"affected\", \"version\": \"1.166.54\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"react-start-rsc\", \"versions\": [{\"status\": \"affected\", \"version\": \"0.0.47\"}, {\"status\": \"affected\", \"version\": \"0.0.50\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"react-start-server\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.55\"}, {\"status\": \"affected\", \"version\": \"1.166.58\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"router-cli\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.46\"}, {\"status\": \"affected\", \"version\": \"1.166.49\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"router-core\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.169.5\"}, {\"status\": \"affected\", \"version\": \"1.169.8\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"router-devtools\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.16\"}, {\"status\": \"affected\", \"version\": \"1.166.19\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"router-devtools-core\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.167.6\"}, {\"status\": \"affected\", \"version\": \"1.167.9\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"router-generator\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.45\"}, {\"status\": \"affected\", \"version\": \"1.166.48\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"router-plugin\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.167.38\"}, {\"status\": \"affected\", \"version\": \"1.167.41\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"router-ssr-query-core\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.168.3\"}, {\"status\": \"affected\", \"version\": \"1.168.6\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"router-utils\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.161.11\"}, {\"status\": \"affected\", \"version\": \"1.161.14\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"outer-vite-plugin\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.53\"}, {\"status\": \"affected\", \"version\": \"1.166.56\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"solid-router\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.169.5\"}, {\"status\": \"affected\", \"version\": \"1.169.8\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"solid-router-devtools\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.16\"}, {\"status\": \"affected\", \"version\": \"1.166.19\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"solid-router-ssr-query\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.15\"}, {\"status\": \"affected\", \"version\": \"1.166.18\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"solid-start\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.167.65\"}, {\"status\": \"affected\", \"version\": \"1.167.68\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"solid-start-client\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.50\"}, {\"status\": \"affected\", \"version\": \"1.166.53\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"solid-start-server\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.54\"}, {\"status\": \"affected\", \"version\": \"1.166.57\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"start-client-core\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.168.5\"}, {\"status\": \"affected\", \"version\": \"1.168.8\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"start-fn-stubs\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.161.9\"}, {\"status\": \"affected\", \"version\": \"1.161.12\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"start-plugin-core\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.169.23\"}, {\"status\": \"affected\", \"version\": \"1.169.26\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"start-server-core\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.167.33\"}, {\"status\": \"affected\", \"version\": \"1.167.36\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"start-static-server-functions\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.44\"}, {\"status\": \"affected\", \"version\": \"1.166.47\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"start-storage-context\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.38\"}, {\"status\": \"affected\", \"version\": \"1.166.41\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"valibot-adapter\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.12\"}, {\"status\": \"affected\", \"version\": \"1.166.15\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"virtual-file-routes\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.161.10\"}, {\"status\": \"affected\", \"version\": \"1.161.13\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"vue-router\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.169.5\"}, {\"status\": \"affected\", \"version\": \"1.169.8\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"vue-router-devtools\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.16\"}, {\"status\": \"affected\", \"version\": \"1.166.19\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"vue-router-ssr-query\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.15\"}, {\"status\": \"affected\", \"version\": \"1.166.18\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"vue-start\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.167.61\"}, {\"status\": \"affected\", \"version\": \"1.167.64\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"vue-start-client\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.46\"}, {\"status\": \"affected\", \"version\": \"1.166.49\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"vue-start-server\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.50\"}, {\"status\": \"affected\", \"version\": \"1.166.53\"}]}, {\"vendor\": \"@tanstack\", \"product\": \"zod-adapter\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.166.12\"}, {\"status\": \"affected\", \"version\": \"1.166.15\"}]}], \"references\": [{\"url\": \"https://github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpx\", \"name\": \"https://github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpx\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/TanStack/router/issues/7383\", \"name\": \"https://github.com/TanStack/router/issues/7383\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://tanstack.com/blog/npm-supply-chain-compromise-postmortem\", \"name\": \"https://tanstack.com/blog/npm-supply-chain-compromise-postmortem\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://www.stepsecurity.io/blog/mini-shai-hulud-is-back-a-self-spreading-supply-chain-attack-hits-the-npm-ecosystem\", \"name\": \"https://www.stepsecurity.io/blog/mini-shai-hulud-is-back-a-self-spreading-supply-chain-attack-hits-the-npm-ecosystem\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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 \\\"Pwn Request\\\" 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-506\", \"description\": \"CWE-506: Embedded Malicious Code\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-05-12T15:16:17.354Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-45321\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-04T03:56:09.005Z\", \"dateReserved\": \"2026-05-11T20:50:30.539Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-05-12T00:12:35.452Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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