Allocation of Resources Without Limits or Throttling in undici - CVE-2026-22036

Vulnerability identifier: #VU127582

CSH Severity: Medium

CVSS v4 BT: 4.6 [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]

CVE-ID: CVE-2026-22036

CWE-ID: CWE-770

Exploitation vector: Remote access

Exploit availability: No public exploit available

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.

undici
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 15
Web and Scripting Module
openSUSE Leap
Fusion Content-Aware Storage
IBM Cloud Pak System
IBM Fusion HCI
OpenShift Data Foundation (formerly OpenShift Container Storage)
corepack20
nodejs20-docs
npm20
nodejs20-debuginfo
nodejs20-devel
nodejs20
nodejs20-debugsource
npm22
nodejs22-docs
nodejs22-debuginfo
corepack22
nodejs22
nodejs22-devel
nodejs22-debugsource

Install security update from vendor's website.

undici - addressed in versions 6.23.0, 7.18.2
Fusion Content-Aware Storage - update to 1.1.5
IBM Cloud Pak System - update to 2.3.5.1
IBM Fusion HCI - update to 2.13.0
OpenShift Data Foundation (formerly OpenShift Container Storage) - update to 4.20.14
corepack20 - addressed in versions 20.20.0-150500.11.24.1, 20.20.0-150600.3.15.1
nodejs20-docs - addressed in versions 20.20.0-150500.11.24.1, 20.20.0-150600.3.15.1
npm20 - addressed in versions 20.20.0-150500.11.24.1, 20.20.0-150600.3.15.1
nodejs20-debuginfo - addressed in versions 20.20.0-150500.11.24.1, 20.20.0-150600.3.15.1
nodejs20-devel - addressed in versions 20.20.0-150500.11.24.1, 20.20.0-150600.3.15.1
nodejs20 - addressed in versions 20.20.0-150500.11.24.1, 20.20.0-150600.3.15.1
nodejs20-debugsource - addressed in versions 20.20.0-150500.11.24.1, 20.20.0-150600.3.15.1
npm22 - addressed in versions 22.22.0-150600.13.12.1, 22.22.0-150700.3.6.1
nodejs22-docs - addressed in versions 22.22.0-150600.13.12.1, 22.22.0-150700.3.6.1
nodejs22-debuginfo - addressed in versions 22.22.0-150600.13.12.1, 22.22.0-150700.3.6.1
corepack22 - update to 22.22.0-150600.13.12.1
nodejs22 - addressed in versions 22.22.0-150600.13.12.1, 22.22.0-150700.3.6.1
nodejs22-devel - addressed in versions 22.22.0-150600.13.12.1, 22.22.0-150700.3.6.1
nodejs22-debugsource - addressed in versions 22.22.0-150600.13.12.1, 22.22.0-150700.3.6.1

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

• Allocation of Resources Without Limits or Throttling in undici
• SUSE update for nodejs22
• SUSE update for nodejs22
• SUSE update for nodejs20
• SUSE update for nodejs20
• Multiple vulnerabilities in OpenShift Data Foundation (formerly OpenShift Container Storage) 4.20
• IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage update for Undici
• Multiple vulnerabilities in IBM Cloud Pak System Software