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TI-2021-06143 Aliases CVE-2021-23452GHSA-4mvj-rq4v-2fxw

Prototype pollution in x-assign

Priority MEDIUM 45CWE-1321Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-915.

Summary

This affects all versions of package x-assign. The global proto object can be polluted using the __proto__ object.

Why it matters now

EPSS 0.0155 75th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—x-assignall versions—No fix listedCNA
—x-assign (npm)up to 0.1.4—No fix listedGHSA-4mvj-rq4v-2fxw
  • x-assign Vendor— Affected all versions Fixed in — No fix listed CNA
  • x-assign (npm) Vendor— Affected up to 0.1.4 Fixed in — No fix listed GHSA-4mvj-rq4v-2fxw

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:binaryops:x-assign:*:*:*:*:*:node.js:*:*all versionsVulnerableBinaryops
  • cpe:2.3:a:binaryops:x-assign:*:*:*:*:*:node.js:*:* Versions all versions Vulnerable ·Binaryops

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-23452
  2. 2026-10-03 Alias added: GHSA-4mvj-rq4v-2fxw

References

Advisory 2

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences