CVE-2025-47279

Summary

Undici is an HTTP/1.1 client for Node.js. Prior to versions 5.29.0, 6.21.2, and 7.5.0, applications that use undici to implement a webhook-like system are vulnerable. If the attacker set up a server with an invalid certificate, and they can force the application to call the webhook repeatedly, then they can cause a memory leak. This has been patched in versions 5.29.0, 6.21.2, and 7.5.0. As a workaound, avoid calling a webhook repeatedly if the webhook fails.

Affected Software

VendorProductVersion RangeStatus
nodejsundici< 5.29.0affected
nodejsundici>= 6.0.0, < 6.21.2affected
nodejsundici>= 7.0.0, < 7.5.0affected

Weaknesses

  • CWE-401: CWE-401: Missing Release of Memory after Effective Lifetime

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

References