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Security tracker

CVE-2026-45321: TanStack Unspecified Vulnerability

In short

TanStack TanStack has a weakness classified as embedded malicious code (CWE-506). CISA added it to its Known Exploited Vulnerabilities catalog on 2026-05-27. NVD lists CVSS 3.1 at 9.6 CRITICAL. CISA reports known ransomware campaign use.

What it is

“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.” — CISA KEV, retrieved 2026-11-01
“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.” — NVD, retrieved 2026-11-01

Who is affected

TanStack TanStack. NVD lists the following versions as affected:

  • Tanstack tanstack/arktype-adapter: version 1.166.12
  • Tanstack tanstack/arktype-adapter: version 1.166.15
  • Tanstack tanstack/eslint-plugin-router: version 1.161.9
  • Tanstack tanstack/eslint-plugin-router: version 1.161.12
  • Tanstack tanstack/eslint-plugin-start: version 0.0.4
  • Tanstack tanstack/eslint-plugin-start: version 0.0.7
  • Tanstack tanstack/history: version 1.161.9
  • Tanstack tanstack/history: version 1.161.12
  • Tanstack tanstack/nitro-v2-vite-plugin: version 1.154.12
  • Tanstack tanstack/nitro-v2-vite-plugin: version 1.154.15
  • Tanstack tanstack/react-router: version 1.169.5
  • Tanstack tanstack/react-router: version 1.169.8
  • Tanstack tanstack/react-router-devtools: version 1.166.16
  • Tanstack tanstack/react-router-devtools: version 1.166.19
  • Tanstack tanstack/react-router-ssr-query: version 1.166.15
  • Tanstack tanstack/react-router-ssr-query: version 1.166.18
  • Tanstack tanstack/react-start: version 1.167.68
  • Tanstack tanstack/react-start: version 1.167.71
  • Tanstack tanstack/react-start-client: version 1.166.51
  • Tanstack tanstack/react-start-client: version 1.166.54
  • Tanstack tanstack/react-start-rsc: version 0.0.47
  • Tanstack tanstack/react-start-rsc: version 0.0.50
  • Tanstack tanstack/react-start-server: version 1.166.55
  • Tanstack tanstack/react-start-server: version 1.166.58
  • Tanstack tanstack/router-cli: version 1.166.46
  • Tanstack tanstack/router-cli: version 1.166.49
  • Tanstack tanstack/router-core: version 1.169.5
  • Tanstack tanstack/router-core: version 1.169.8
  • Tanstack tanstack/router-devtools: version 1.166.16
  • Tanstack tanstack/router-devtools: version 1.166.19
  • Tanstack tanstack/router-devtools-core: version 1.167.6
  • Tanstack tanstack/router-devtools-core: version 1.167.9
  • Tanstack tanstack/router-generator: version 1.166.45
  • Tanstack tanstack/router-generator: version 1.166.48
  • Tanstack tanstack/router-plugin: version 1.167.38
  • Tanstack tanstack/router-plugin: version 1.167.41
  • Tanstack tanstack/router-ssr-query-core: version 1.168.3
  • Tanstack tanstack/router-ssr-query-core: version 1.168.6
  • Tanstack tanstack/router-utils: version 1.161.11
  • Tanstack tanstack/router-utils: version 1.161.14
  • Tanstack tanstack/router-vite-plugin: version 1.166.53
  • Tanstack tanstack/router-vite-plugin: version 1.166.56
  • Tanstack tanstack/solid-router: version 1.169.5
  • Tanstack tanstack/solid-router: version 1.169.8
  • Tanstack tanstack/solid-router-devtools: version 1.166.16
  • Tanstack tanstack/solid-router-devtools: version 1.166.19
  • Tanstack tanstack/solid-router-ssr-query: version 1.166.15
  • Tanstack tanstack/solid-router-ssr-query: version 1.166.18
  • Tanstack tanstack/solid-start: version 1.167.65
  • Tanstack tanstack/solid-start: version 1.167.68
  • Tanstack tanstack/solid-start-client: version 1.166.50
  • Tanstack tanstack/solid-start-client: version 1.166.53
  • Tanstack tanstack/solid-start-server: version 1.166.54
  • Tanstack tanstack/solid-start-server: version 1.166.57
  • Tanstack tanstack/start-client-core: version 1.168.5
  • Tanstack tanstack/start-client-core: version 1.168.8
  • Tanstack tanstack/start-fn-stubs: version 1.161.9
  • Tanstack tanstack/start-fn-stubs: version 1.161.12
  • Tanstack tanstack/start-plugin-core: version 1.169.23
  • Tanstack tanstack/start-plugin-core: version 1.169.26
  • Tanstack tanstack/start-server-core: version 1.167.33
  • Tanstack tanstack/start-server-core: version 1.167.36
  • Tanstack tanstack/start-static-server-functions: version 1.166.44
  • Tanstack tanstack/start-static-server-functions: version 1.166.47
  • Tanstack tanstack/start-storage-context: version 1.166.38
  • Tanstack tanstack/start-storage-context: version 1.166.41
  • Tanstack tanstack/valibot-adapter: version 1.166.12
  • Tanstack tanstack/valibot-adapter: version 1.166.15
  • Tanstack tanstack/virtual-file-routes: version 1.161.10
  • Tanstack tanstack/virtual-file-routes: version 1.161.13
  • Tanstack tanstack/vue-router: version 1.169.5
  • Tanstack tanstack/vue-router: version 1.169.8
  • Tanstack tanstack/vue-router-devtools: version 1.166.16
  • Tanstack tanstack/vue-router-devtools: version 1.166.19
  • Tanstack tanstack/vue-router-ssr-query: version 1.166.15
  • Tanstack tanstack/vue-router-ssr-query: version 1.166.18
  • Tanstack tanstack/vue-start: version 1.167.61
  • Tanstack tanstack/vue-start: version 1.167.64
  • Tanstack tanstack/vue-start-client: version 1.166.46
  • Tanstack tanstack/vue-start-client: version 1.166.49
  • Tanstack tanstack/vue-start-server: version 1.166.50
  • Tanstack tanstack/vue-start-server: version 1.166.53
  • Tanstack tanstack/zod-adapter: version 1.166.12
  • Tanstack tanstack/zod-adapter: version 1.166.15
  • Mistral Mistralai: version 2.4.6
  • Mistral mistralai/mistralai: version 2.2.3
  • Mistral mistralai/mistralai: version 2.2.4
  • Mistral mistralai/mistralai-azure: version 1.7.2
  • Mistral mistralai/mistralai-azure: version 1.7.3
  • Mistral mistralai/mistralai-gcp: version 1.7.2
  • Mistral mistralai/mistralai-gcp: version 1.7.3
  • Antoinebcx ml-toolkit-ts: version 1.0.4
  • Antoinebcx ml-toolkit-ts: version 1.0.5
  • Antoinebcx ml-toolkit-ts/preprocessing: version 1.0.2
  • Antoinebcx ml-toolkit-ts/preprocessing: version 1.0.3
  • Antoinebcx ml-toolkit-ts/xgboost: version 1.0.3
  • Antoinebcx ml-toolkit-ts/xgboost: version 1.0.4
  • Beproduct beproduct/nestjs-auth: version 0.1.2
  • Beproduct beproduct/nestjs-auth: version 0.1.3
  • Beproduct beproduct/nestjs-auth: version 0.1.4
  • Beproduct beproduct/nestjs-auth: version 0.1.5
  • Beproduct beproduct/nestjs-auth: version 0.1.6
  • Beproduct beproduct/nestjs-auth: version 0.1.7
  • Beproduct beproduct/nestjs-auth: version 0.1.8
  • Beproduct beproduct/nestjs-auth: version 0.1.9
  • Beproduct beproduct/nestjs-auth: version 0.1.10
  • Beproduct beproduct/nestjs-auth: version 0.1.11
  • Beproduct beproduct/nestjs-auth: version 0.1.12
  • Beproduct beproduct/nestjs-auth: version 0.1.13
  • Beproduct beproduct/nestjs-auth: version 0.1.14
  • Beproduct beproduct/nestjs-auth: version 0.1.15
  • Beproduct beproduct/nestjs-auth: version 0.1.16
  • Beproduct beproduct/nestjs-auth: version 0.1.17
  • Beproduct beproduct/nestjs-auth: version 0.1.19
  • Christianalares git-git-git: version 1.0.8
  • Christianalares git-git-git: version 1.0.9
  • Christianalares git-git-git: version 1.0.10
  • Christianalares git-git-git: version 1.0.12
  • Christianalares Git Branch Selector: version 1.3.3
  • Christianalares Git Branch Selector: version 1.3.4
  • Christianalares Git Branch Selector: version 1.3.5
  • Christianalares Git Branch Selector: version 1.3.7
  • Christianalares nextmove-mcp: version 0.1.3
  • Christianalares nextmove-mcp: version 0.1.4
  • Christianalares nextmove-mcp: version 0.1.5
  • Christianalares nextmove-mcp: version 0.1.7
  • Christianalares tolka/cli: version 1.0.2
  • Christianalares tolka/cli: version 1.0.3
  • Christianalares tolka/cli: version 1.0.4
  • Christianalares tolka/cli: version 1.0.6
  • Multiagentcognition cmux-agent-mcp: version 0.1.3
  • Multiagentcognition cmux-agent-mcp: version 0.1.4
  • Multiagentcognition cmux-agent-mcp: version 0.1.5
  • Multiagentcognition cmux-agent-mcp: version 0.1.6
  • Multiagentcognition cmux-agent-mcp: version 0.1.7
  • Multiagentcognition cmux-agent-mcp: version 0.1.8
  • abhishake1 supersurkhet/cli: version 0.0.2
  • abhishake1 supersurkhet/cli: version 0.0.3
  • abhishake1 supersurkhet/cli: version 0.0.4
  • abhishake1 supersurkhet/cli: version 0.0.5
  • abhishake1 supersurkhet/cli: version 0.0.6
  • abhishake1 supersurkhet/cli: version 0.0.7
  • abhishake1 supersurkhet/sdk: version 0.0.2
  • abhishake1 supersurkhet/sdk: version 0.0.3
  • abhishake1 supersurkhet/sdk: version 0.0.4
  • abhishake1 supersurkhet/sdk: version 0.0.5
  • abhishake1 supersurkhet/sdk: version 0.0.6
  • abhishake1 supersurkhet/sdk: version 0.0.7
  • abhishake1 taskflow-corp/cli: version 0.1.24
  • abhishake1 taskflow-corp/cli: version 0.1.25
  • abhishake1 taskflow-corp/cli: version 0.1.26
  • abhishake1 taskflow-corp/cli: version 0.1.27
  • abhishake1 taskflow-corp/cli: version 0.1.28
  • abhishake1 taskflow-corp/cli: version 0.1.29
  • Kilbot tallyui/components: version 1.0.1
  • Kilbot tallyui/components: version 1.0.2
  • Kilbot tallyui/components: version 1.0.3
  • Kilbot tallyui/connector-medusa: version 1.0.1
  • Kilbot tallyui/connector-medusa: version 1.0.2
  • Kilbot tallyui/connector-medusa: version 1.0.3
  • Kilbot tallyui/connector-shopify: version 1.0.1
  • Kilbot tallyui/connector-shopify: version 1.0.2
  • Kilbot tallyui/connector-shopify: version 1.0.3
  • Kilbot tallyui/connector-vendure: version 1.0.1
  • Kilbot tallyui/connector-vendure: version 1.0.2
  • Kilbot tallyui/connector-vendure: version 1.0.3
  • Kilbot tallyui/connector-woocommerce: version 1.0.1
  • Kilbot tallyui/connector-woocommerce: version 1.0.2
  • Kilbot tallyui/connector-woocommerce: version 1.0.3
  • Kilbot tallyui/core: version 0.2.1
  • Kilbot tallyui/core: version 0.2.2
  • Kilbot tallyui/core: version 0.2.3
  • Kilbot tallyui/database: version 1.0.1
  • Kilbot tallyui/database: version 1.0.2
  • Kilbot tallyui/database: version 1.0.3
  • Kilbot tallyui/pos: version 0.1.1
  • Kilbot tallyui/pos: version 0.1.2
  • Kilbot tallyui/pos: version 0.1.3
  • Kilbot tallyui/storage-sqlite: version 0.2.1
  • Kilbot tallyui/storage-sqlite: version 0.2.2
  • Kilbot tallyui/storage-sqlite: version 0.2.3
  • Kilbot tallyui/theme: version 0.2.1
  • Kilbot tallyui/theme: version 0.2.2
  • Kilbot tallyui/theme: version 0.2.3
  • Matheuspergoli draftauth/client: version 0.2.1
  • Matheuspergoli draftauth/client: version 0.2.2
  • Matheuspergoli draftauth/core: version 0.13.1
  • Matheuspergoli draftauth/core: version 0.13.2
  • Matheuspergoli draftlab/auth: version 0.24.1
  • Matheuspergoli draftlab/auth: version 0.24.2
  • Matheuspergoli draftlab/auth-router: version 0.5.1
  • Matheuspergoli draftlab/auth-router: version 0.5.2
  • Matheuspergoli draftlab/db: version 0.16.1
  • Matheuspergoli draftlab/db: version 0.16.2
  • Matheuspergoli Simple type-safe Actions: version 0.8.3
  • Matheuspergoli Simple type-safe Actions: version 0.8.4
  • Neilcochran cross-stitch: version 1.1.3
  • Neilcochran cross-stitch: version 1.1.4
  • Neilcochran cross-stitch: version 1.1.6
  • Neilcochran squawk/airports: version 0.6.2
  • Neilcochran squawk/airports: version 0.6.3
  • Neilcochran squawk/airports: version 0.6.5
  • Neilcochran squawk/airspace: version 0.8.1
  • Neilcochran squawk/airspace: version 0.8.2
  • Neilcochran squawk/airspace: version 0.8.4
  • Neilcochran squawk/airspace-data: version 0.5.3
  • Neilcochran squawk/airspace-data: version 0.5.4
  • Neilcochran squawk/airspace-data: version 0.5.6
  • Neilcochran squawk/airway-data: version 0.5.4
  • Neilcochran squawk/airway-data: version 0.5.5
  • Neilcochran squawk/airway-data: version 0.5.7
  • Neilcochran squawk/airways: version 0.4.2
  • Neilcochran squawk/airways: version 0.4.3
  • Neilcochran squawk/airways: version 0.4.5
  • Neilcochran squawk/fix-data: version 0.6.4
  • Neilcochran squawk/fix-data: version 0.6.5
  • Neilcochran squawk/fix-data: version 0.6.7
  • Neilcochran squawk/fixes: version 0.3.2
  • Neilcochran squawk/fixes: version 0.3.3
  • Neilcochran squawk/fixes: version 0.3.5
  • Neilcochran squawk/flight-math: version 0.5.4
  • Neilcochran squawk/flight-math: version 0.5.5
  • Neilcochran squawk/flight-math: version 0.5.7
  • Neilcochran squawk/flightplan: version 0.5.2
  • Neilcochran squawk/flightplan: version 0.5.3
  • Neilcochran squawk/flightplan: version 0.5.5
  • Neilcochran squawk/geo: version 0.4.4
  • Neilcochran squawk/geo: version 0.4.5
  • Neilcochran squawk/geo: version 0.4.7
  • Neilcochran squawk/icao-registry: version 0.5.2
  • Neilcochran squawk/icao-registry: version 0.5.3
  • Neilcochran squawk/icao-registry: version 0.5.5
  • Neilcochran squawk/icao-registry-data: version 0.8.4
  • Neilcochran squawk/icao-registry-data: version 0.8.5
  • Neilcochran squawk/icao-registry-data: version 0.8.7
  • Neilcochran squawk/mcp: version 0.9.1
  • Neilcochran squawk/mcp: version 0.9.2
  • Neilcochran squawk/mcp: version 0.9.4
  • Neilcochran squawk/navaid-data: version 0.6.4
  • Neilcochran squawk/navaid-data: version 0.6.5
  • Neilcochran squawk/navaid-data: version 0.6.7
  • Neilcochran squawk/navaids: version 0.4.2
  • Neilcochran squawk/navaids: version 0.4.3
  • Neilcochran squawk/navaids: version 0.4.5
  • Neilcochran squawk/notams: version 0.3.6
  • Neilcochran squawk/notams: version 0.3.7
  • Neilcochran squawk/notams: version 0.3.9
  • Neilcochran squawk/procedure-data: version 0.7.3
  • Neilcochran squawk/procedure-data: version 0.7.4
  • Neilcochran squawk/procedure-data: version 0.7.6
  • Neilcochran squawk/procedures: version 0.5.2
  • Neilcochran squawk/procedures: version 0.5.3
  • Neilcochran squawk/procedures: version 0.5.5
  • Neilcochran squawk/types: version 0.8.1
  • Neilcochran squawk/types: version 0.8.2
  • Neilcochran squawk/types: version 0.8.4
  • Neilcochran squawk/units: version 0.4.3
  • Neilcochran squawk/units: version 0.4.4
  • Neilcochran squawk/units: version 0.4.6
  • Neilcochran squawk/weather: version 0.5.6
  • Neilcochran squawk/weather: version 0.5.7
  • Neilcochran squawk/weather: version 0.5.9
  • Neilcochran ts-dna: version 3.0.1
  • Neilcochran ts-dna: version 3.0.2
  • Neilcochran ts-dna: version 3.0.4
  • Neilcochran wot-api: version 0.8.1
  • Neilcochran wot-api: version 0.8.2
  • Neilcochran wot-api: version 0.8.4
  • Agentworkhq agentwork-cli: version 0.1.4
  • Agentworkhq agentwork-cli: version 0.1.5
  • Dirigible dirigible-ai/sdk: version 0.6.2
  • Dirigible dirigible-ai/sdk: version 0.6.3
  • Guardrailsai Guardrails Ai: version 0.10.1
  • Linuxfoundation Opensearch: version 3.6.2
  • Mesa mesadev/rest: version 0.28.3
  • Mesa mesadev/saguaro: version 0.4.22
  • Mesa mesadev/sdk: version 0.28.3
  • Uipath uipath/access-policy-sdk: version 0.3.1
  • Uipath uipath/access-policy-tool: version 0.3.1
  • Uipath uipath/admin-tool: version 0.1.1
  • Uipath uipath/agent-sdk: version 1.0.2
  • Uipath uipath/agent-tool: version 1.0.1
  • Uipath uipath/agent.sdk: version 0.0.18
  • Uipath uipath/aops-policy-tool: version 0.3.1
  • Uipath uipath/ap-chat: version 1.5.7
  • Uipath uipath/api-workflow-tool: version 1.0.1
  • Uipath uipath/apollo-core: version 5.9.2
  • Uipath uipath/apollo-react: version 4.24.5
  • Uipath uipath/apollo-wind: version 2.16.2
  • Uipath uipath/auth: version 1.0.1
  • Uipath uipath/case-tool: version 1.0.1
  • Uipath uipath/cli: version 1.0.1
  • Uipath uipath/codedagent-tool: version 1.0.1
  • Uipath uipath/codedagents-tool: version 0.1.12
  • Uipath uipath/codedapp-tool: version 1.0.1
  • Uipath uipath/common: version 1.0.1
  • Uipath uipath/context-grounding-tool: version 0.1.1
  • Uipath uipath/data-fabric-tool: version 1.0.2
  • Uipath uipath/docsai-tool: version 1.0.1
  • Uipath uipath/filesystem: version 1.0.1
  • Uipath uipath/flow-tool: version 1.0.2
  • Uipath uipath/functions-tool: version 1.0.1
  • Uipath uipath/gov-tool: version 0.3.1
  • Uipath uipath/identity-tool: version 0.1.1
  • Uipath uipath/insights-sdk: version 1.0.1
  • Uipath uipath/insights-tool: version 1.0.1
  • Uipath uipath/integrationservice-sdk: version 1.0.2
  • Uipath uipath/integrationservice-tool: version 1.0.2
  • Uipath uipath/llmgw-tool: version 1.0.1
  • Uipath uipath/maestro-sdk: version 1.0.1
  • Uipath uipath/maestro-tool: version 1.0.1
  • Uipath uipath/orchestrator-tool: version 1.0.1
  • Uipath uipath/packager-tool-apiworkflow: version 0.0.19
  • Uipath uipath/packager-tool-bpmn: version 0.0.9
  • Uipath uipath/packager-tool-case: version 0.0.9
  • Uipath uipath/packager-tool-connector: version 0.0.19
  • Uipath uipath/packager-tool-flow: version 0.0.19
  • Uipath uipath/packager-tool-functions: version 0.1.1
  • Uipath uipath/packager-tool-webapp: version 1.0.6
  • Uipath uipath/packager-tool-workflowcompiler: version 0.0.16
  • Uipath uipath/packager-tool-workflowcompiler-browser: version 0.0.34
  • Uipath uipath/platform-tool: version 1.0.1
  • Uipath uipath/project-packager: version 1.1.16
  • Uipath uipath/resource-tool: version 1.0.1
  • Uipath uipath/resourcecatalog-tool: version 0.1.1
  • Uipath uipath/resources-tool: version 0.1.11
  • Uipath uipath/robot: version 1.3.4
  • Uipath uipath/rpa-legacy-tool: version 1.0.1
  • Uipath uipath/rpa-tool: version 0.9.5
  • Uipath uipath/solution-packager: version 0.0.35
  • Uipath uipath/solution-tool: version 1.0.1
  • Uipath uipath/solutionpackager-sdk: version 1.0.11
  • Uipath uipath/solutionpackager-tool-core: version 0.0.34
  • Uipath uipath/tasks-tool: version 1.0.1
  • Uipath uipath/telemetry: version 0.0.7
  • Uipath uipath/test-manager-tool: version 1.0.2
  • Uipath uipath/tool-workflowcompiler: version 0.0.12
  • Uipath uipath/traces-tool: version 1.0.1
  • Uipath uipath/ui-widgets-multi-file-upload: version 1.0.1
  • Uipath uipath/uipath-python-bridge: version 1.0.1
  • Uipath uipath/vertical-solutions-tool: version 1.0.1
  • Uipath uipath/vss: version 0.1.6
  • Uipath uipath/widget.sdk: version 1.2.3

Exploitation status

CISA KEV added: 2026-05-27. Known ransomware campaign use: Known (reported by CISA). Due date CISA set for US federal civilian agencies: 2026-06-10.

Scores

NVD CVSS 3.1: 9.6 CRITICAL; vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H; source [email protected].

EPSS by FIRST: 3.28%; percentile 88.43; score date 2026-10-31. EPSS estimates the probability of exploitation in the next 30 days.

CWE: CWE-506.

Timeline

Source events
DateEvent
2026-05-12T01:16:46.820NVD published
2026-05-27CISA KEV added
2026-06-10CISA KEV due
2026-10-26T18:10:00.173NVD last modified
2026-10-31FIRST EPSS score

CISA 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.” — CISA KEV

What to do

  • Confirm whether you run TanStack TanStack and which version.
  • Apply the vendor update or mitigation in the advisory.
  • Follow CISA’s required action.
  • Review the vendor guidance on signs of compromise.
  • Track the fix through completion.

References

Sources and dates

CISA Known Exploited Vulnerabilities Catalog, version 2026.10.30; retrieved 2026-11-01. CISA KEV data: CC0 1.0. No endorsement by CISA.

NVD retrieved: 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.

EPSS scores by FIRST; score date 2026-10-31.

Check your own domain's public security settings

The snapshot checks a domain you own or are authorized to check for DNS, HTTPS/TLS and web-header hygiene. It does not test for this CVE.

Check your own domain's public security settingsBook a scoping call