SB20260424138 - Allocation of Resources Without Limits or Throttling in undici

Description

This security bulletin contains information about 1 vulnerability.

1) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-22036)

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to allocation of resources without limits or throttling in the fetch() API and undici decompress interceptor when processing HTTP responses with chained Content-Encoding values. A remote attacker can send a specially crafted response with thousands of compression steps to cause a denial of service.

Remediation

Install update from vendor's website.

References

• https://github.com/nodejs/undici/security/advisories/GHSA-g9mf-h72j-4rw9
• https://github.com/advisories/GHSA-g9mf-h72j-4rw9