CVE-2026-45321 · threatengine.sh

Home/CVE/TanStack Unspecified Vulnerability

CVE

CVE-2026-45321

TanStack Unspecified Vulnerability

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.

CRITICAL · CVSS 9.6 ⚠ CISA KEV EPSS 0.17051 Ransomware: known

Act now

Listed on CISA KEV (known exploited in the wild)
Linked to known ransomware campaigns
EPSS ≥ 0.10 - elevated exploitation probability
EPSS percentile: top 5% of all CVEs by exploitation likelihood
Public exploit or PoC is available
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

⬢

Required Remediation

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

⬡

Weakness Classification

CWE-506Embedded Malicious Code

▤

Affected Products & Versions

30

tanstack tanstack\/arktype-adapterall versions
tanstack tanstack\/eslint-plugin-routerall versions
tanstack tanstack\/eslint-plugin-startall versions
tanstack tanstack\/historyall versions
tanstack tanstack\/nitro-v2-vite-pluginall versions
tanstack tanstack\/react-routerall versions
tanstack tanstack\/react-router-devtoolsall versions
tanstack tanstack\/react-router-ssr-queryall versions
Show all 30 affected productstanstack tanstack\/react-startall versions
tanstack tanstack\/react-start-clientall versions
tanstack tanstack\/react-start-rscall versions
tanstack tanstack\/react-start-serverall versions
tanstack tanstack\/router-cliall versions
tanstack tanstack\/router-coreall versions
tanstack tanstack\/router-devtoolsall versions
tanstack tanstack\/router-devtools-coreall versions
tanstack tanstack\/router-generatorall versions
tanstack tanstack\/router-pluginall versions
tanstack tanstack\/router-ssr-query-coreall versions
tanstack tanstack\/router-utilsall versions
tanstack tanstack\/router-vite-pluginall versions
tanstack tanstack\/solid-routerall versions
tanstack tanstack\/solid-router-devtoolsall versions
tanstack tanstack\/solid-router-ssr-queryall versions
tanstack tanstack\/solid-startall versions
tanstack tanstack\/solid-start-clientall versions
tanstack tanstack\/solid-start-serverall versions
tanstack tanstack\/start-client-coreall versions
tanstack tanstack\/start-fn-stubsall versions
tanstack tanstack\/start-plugin-coreall versions

▤

Affected Packages

40

Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.

npm @tanstack/arktype-adapter CRITICAL fixed in 1.166.16

npm @tanstack/eslint-plugin-router CRITICAL fixed in 1.161.13

npm @tanstack/eslint-plugin-start CRITICAL fixed in 0.0.8

npm @tanstack/history CRITICAL fixed in 1.161.13

npm @tanstack/nitro-v2-vite-plugin CRITICAL fixed in 1.154.16

npm @tanstack/react-router CRITICAL fixed in 1.169.9

npm @tanstack/react-router-devtools CRITICAL fixed in 1.166.20

npm @tanstack/react-router-ssr-query CRITICAL fixed in 1.166.19

npm @tanstack/react-start CRITICAL fixed in 1.167.72

npm @tanstack/react-start-client CRITICAL fixed in 1.166.55

npm @tanstack/react-start-rsc CRITICAL fixed in 0.0.51

npm @tanstack/react-start-server CRITICAL fixed in 1.166.59

npm @tanstack/router-cli CRITICAL fixed in 1.166.50

npm @tanstack/router-core CRITICAL fixed in 1.169.9

npm @tanstack/router-devtools CRITICAL fixed in 1.166.20

npm @tanstack/router-devtools-core CRITICAL fixed in 1.167.10

npm @tanstack/router-generator CRITICAL fixed in 1.166.49

npm @tanstack/router-plugin CRITICAL fixed in 1.167.42

npm @tanstack/router-ssr-query-core CRITICAL fixed in 1.168.7

npm @tanstack/router-utils CRITICAL fixed in 1.161.15

npm @tanstack/router-vite-plugin CRITICAL fixed in 1.166.57

npm @tanstack/solid-router CRITICAL fixed in 1.169.9

npm @tanstack/solid-router-devtools CRITICAL fixed in 1.166.20

npm @tanstack/solid-router-ssr-query CRITICAL fixed in 1.166.19

npm @tanstack/solid-start CRITICAL fixed in 1.167.69

npm @tanstack/solid-start-client CRITICAL fixed in 1.166.54

npm @tanstack/solid-start-server CRITICAL fixed in 1.166.58

npm @tanstack/start-client-core CRITICAL fixed in 1.168.9

npm @tanstack/start-fn-stubs CRITICAL fixed in 1.161.13

npm @tanstack/start-plugin-core CRITICAL fixed in 1.169.27

npm @tanstack/start-server-core CRITICAL fixed in 1.167.37

npm @tanstack/start-static-server-functions CRITICAL fixed in 1.166.48

npm @tanstack/start-storage-context CRITICAL fixed in 1.166.42

npm @tanstack/valibot-adapter CRITICAL fixed in 1.166.16

npm @tanstack/virtual-file-routes CRITICAL fixed in 1.161.14

npm @tanstack/vue-router CRITICAL fixed in 1.169.9

npm @tanstack/vue-router-devtools CRITICAL fixed in 1.166.20

npm @tanstack/vue-router-ssr-query CRITICAL fixed in 1.166.19

npm @tanstack/vue-start CRITICAL fixed in 1.167.65

npm @tanstack/vue-start-client CRITICAL fixed in 1.166.50

⚠

Public Exploits & PoCs

2

poctanstack.com · npm-supply-chain-compromise-postmortemtanstack.com

pocwww.stepsecurity.io · mini-shai-hulud-is-back-a-self-spreading-supply-chain-att...www.stepsecurity.io

▣

Scoring & Timeline

9.6

CRITICAL · CVSS v3.1 · security-advisories@github.com

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD12 May 2026 · 01:16 AM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

SSVC triage · cisa-vulnrichment

Exploitation

none

Automatable

no

Technical impact

total

SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

🔗

References & Sources

2

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://github.com/TanStack/router/issues/7383Issue Tracking

https://github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpxMitigationVendor Advisory

Intelligence Graph · click any node to traverse

CVETechnique ActorTool Family

drag to reposition · click any node to traverse · button top-right enlarges

External lookups - second-class, for what we don’t hold ourselves

NVD CVE.org CISA Vulners Exploit-DB GitHub PoC VulnCheck KEV GreyNoise

Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities

Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs

Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures

Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1

About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service

threatengine.sh · Open-source threat intelligence platform · 100+ authoritative sources · Every fact traces to its origin