TanStack JavaScript Library Suite Added to CISA's Known Exploited Vulnerabilities Catalog; Federal Remediation Deadline for Covered Entities Was June 10th

Last refreshed2026-09-27

Status: KEV | Advisory ID: CVE-2026-45321

Key Details

CVE	CVE-2026-45321
Vulnerability Name	TanStack Unspecified Vulnerability
Affected products	TanStack TanStack
Exploitation status	Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
KEV listing	Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-05-27.
Exploitation prediction (EPSS)	1.05% probability of exploitation in the next 30 days (63% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline	2026-06-10 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
TanStack	TanStack

Vendor

Product

Affected Versions

Patch Status

TanStack

Subsystems	General OT
Sectors	Multiple

What to Know

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.

What to Do

Monitor TanStack's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-45321
CVE	https://www.cve.org/CVERecord?id=CVE-2026-45321

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-45321

CVE

https://www.cve.org/CVERecord?id=CVE-2026-45321

KEV Required Action

Field	Value
KEV Link	https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV	2026-05-27
Required Action 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.

Field

Value

KEV Link

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Date Added to KEV

2026-05-27

Required Action 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.