01 Record

CVE-2026-45321

Malware in 42 @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys

CriticalKEVPUBLISHEDCNA: GitHub_M

CNA base score9.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

View raw JSON

02 Description

Malware in 42 @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys

03 Exploitation and scoring

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2026-05-27. Federal remediation due 2026-06-10.

SSVC decision

ExploitationactiveCISA reports credible evidence of active exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 82.1% of scored records. A rank, not a probability.

NVD base score

9.6 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-05-12 00:12Z3 MO AGO

Last updated

2026-08-04 03:56Z1 MO AGO

Reserved

2026-05-11

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.6)

CNA CVSS vector

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

Weaknesses

CWE-506Embedded Malicious CodeClass

Data version

5.2

Document digest

19fa7d19ece5b3887d7fcf55c693fa94989b17054356cc194fc92047ad0d3596

05 Affected products

VendorProductVersionsPlatforms

@tanstackarktype-adapter1.166.12, 1.166.15—

@tanstackeslint-plugin-router1.161.9, 1.161.12—

@tanstackeslint-plugin-start0.0.4, 0.0.7—

@tanstackhistory1.161.9, 1.161.12—

@tanstacknitro-v2-vite-plugin1.154.12, 1.154.15—

@tanstackreact-router1.169.5, 1.169.8—

@tanstackreact-router-devtools1.166.16, 1.166.19—

@tanstackreact-router-ssr-query1.166.15, 1.166.18—

@tanstackreact-start1.167.68, 1.167.71—

@tanstackreact-start-client1.166.51, 1.166.54—

@tanstackreact-start-rsc0.0.47, 0.0.50—

@tanstackreact-start-server1.166.55, 1.166.58—

@tanstackrouter-cli1.166.46, 1.166.49—

@tanstackrouter-core1.169.5, 1.169.8—

@tanstackrouter-devtools1.166.16, 1.166.19—

@tanstackrouter-devtools-core1.167.6, 1.167.9—

@tanstackrouter-generator1.166.45, 1.166.48—

@tanstackrouter-plugin1.167.38, 1.167.41—

@tanstackrouter-ssr-query-core1.168.3, 1.168.6—

@tanstackrouter-utils1.161.11, 1.161.14—

@tanstackouter-vite-plugin1.166.53, 1.166.56—

@tanstacksolid-router1.169.5, 1.169.8—

@tanstacksolid-router-devtools1.166.16, 1.166.19—

@tanstacksolid-router-ssr-query1.166.15, 1.166.18—

@tanstacksolid-start1.167.65, 1.167.68—

@tanstacksolid-start-client1.166.50, 1.166.53—

@tanstacksolid-start-server1.166.54, 1.166.57—

@tanstackstart-client-core1.168.5, 1.168.8—

@tanstackstart-fn-stubs1.161.9, 1.161.12—

@tanstackstart-plugin-core1.169.23, 1.169.26—

@tanstackstart-server-core1.167.33, 1.167.36—

@tanstackstart-static-server-functions1.166.44, 1.166.47—

@tanstackstart-storage-context1.166.38, 1.166.41—

@tanstackvalibot-adapter1.166.12, 1.166.15—

@tanstackvirtual-file-routes1.161.10, 1.161.13—

@tanstackvue-router1.169.5, 1.169.8—

@tanstackvue-router-devtools1.166.16, 1.166.19—

@tanstackvue-router-ssr-query1.166.15, 1.166.18—

@tanstackvue-start1.167.61, 1.167.64—

@tanstackvue-start-client1.166.46, 1.166.49—

@tanstackvue-start-server1.166.50, 1.166.53—

@tanstackzod-adapter1.166.12, 1.166.15—

06 References

github.comhttps://github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpxx_refsource_CONFIRM
github.comhttps://github.com/TanStack/router/issues/7383x_refsource_MISC
tanstack.comhttps://tanstack.com/blog/npm-supply-chain-compromise-postmortemx_refsource_MISC
www.stepsecurity.iohttps://www.stepsecurity.io/blog/mini-shai-hulud-is-back-a-self-spreading-supply-chain-attack-hits-the-npm-ecosystemx_refsource_MISC
www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45321government-resource

01 Record index

CVE-2026-45321

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-45321

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References