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
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. Known ransomware campaign use: reported by CISA.
- 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.
- EPSS probability
- 3.27% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.3% 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 2026-10-26.
- 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 00:12Z5 MO AGO
- Last updated
- 2026-08-04 03:56Z2 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
06 References
- github.comhttps://github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpx
- github.comhttps://github.com/TanStack/router/issues/7383
- tanstack.comhttps://tanstack.com/blog/npm-supply-chain-compromise-postmortem
- www.stepsecurity.iohttps://www.stepsecurity.io/blog/mini-shai-hulud-is-back-a-self-spreading-supply-chain-attack-hits-the-npm-ecosystem
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45321