Description
This is an uncontrolled resource consumption vulnerability (CWE-400) that can lead to Denial of Service (DoS).
In vulnerable Undici versions, when interceptors.deduplicate() is enabled, response data for deduplicated requests could be accumulated in memory for downstream handlers. An attacker-controlled or untrusted upstream endpoint can exploit this with large/chunked responses and concurrent identical requests, causing high memory usage and potential OOM process termination.
Impacted users are applications that use Undici’s deduplication interceptor against endpoints that may produce large or long-lived response bodies.
PatchesThe issue has been patched by changing deduplication behavior to stream response chunks to downstream handlers as they arrive (instead of full-body accumulation), and by preventing late deduplication when body streaming has already started.
Users should upgrade to the first official Undici (and Node.js, where applicable) releases that include this patch.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| undici | undici | < 6.24.0; 7.0.0 < 7.24.0 | 6.24.0: 7.24.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | node-undici | 7.24.5+dfsg+~cs3.2.0-1 | — |
| Debian 13 | node-undici | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | node-undici | No fix yet | — |
| Ubuntu 26.04 LTS | node-undici | No fix yet | — |
| Ubuntu 25.10 | node-undici | No fix yet | — |
| Ubuntu 24.04 LTS | node-undici | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | nodejs24 +4 | 1:24.14.1-2.el10_1 | RHSA-2026:7675 |
| RHEL 10 | nodejs24-npm | 1:11.11.0-1.24.14.1.2.el10_1 | RHSA-2026:7675 |
| RHEL 9 | nodejs +4 | 1:24.14.1-2.module+el9.7.0+24166+51c9666b | RHSA-2026:7350 |
| RHEL 9 | nodejs-nodemon | 3.0.3-3.module+el9.7.0+24166+51c9666b | RHSA-2026:7350 |
| RHEL 9 | nodejs-packaging +1 | 2021.06-6.module+el9.7.0+24166+51c9666b | RHSA-2026:7350 |
| RHEL 9 | npm | 1:11.11.0-1.24.14.1.2.module+el9.7.0+24166+51c9666b | RHSA-2026:7350 |
| RHEL 9 | v8-13.6-devel | 3:13.6.233.17-1.24.14.1.2.module+el9.7.0+24166+51c9666b | RHSA-2026:7350 |
| RHEL 8 | nodejs +4 | 1:24.14.1-2.module+el8.10.0+24190+49a46c75 | RHSA-2026:7670 |
| RHEL 8 | nodejs-nodemon | 3.0.3-1.module+el8.10.0+24190+49a46c75 | RHSA-2026:7670 |
| RHEL 8 | nodejs-packaging +1 | 2021.06-6.module+el8.10.0+24190+49a46c75 | RHSA-2026:7670 |
| RHEL 8 | npm | 1:11.11.0-1.24.14.1.2.module+el8.10.0+24190+49a46c75 | RHSA-2026:7670 |
| RHEL 8 | v8-13.6-devel | 3:13.6.233.17-1.24.14.1.2.module+el8.10.0+24190+49a46c75 | RHSA-2026:7670 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | nodejs24-docs | 1:24.14.1-2.el10_1 | ALSA-2026:7675 |
| AlmaLinux 10 | nodejs24-npm | 1:11.11.0-1.24.14.1.2.el10_1 | ALSA-2026:7675 |
| AlmaLinux 9 | nodejs +4 | 1:24.14.1-2.module_el9.7.0+222+ef1c61e1 | ALSA-2026:7350 |
| AlmaLinux 9 | nodejs-nodemon | 3.0.3-3.module_el9.7.0+209+ecf6523e | ALSA-2026:7350 |
| AlmaLinux 9 | nodejs-packaging | 2021.06-6.module_el9.7.0+209+ecf6523e | ALSA-2026:7350 |
| AlmaLinux 9 | nodejs-packaging-bundler | 2021.06-6.module_el9.7.0+198+8bf605ba | ALSA-2026:7350 |
| AlmaLinux 9 | npm | 1:11.11.0-1.24.14.1.2.module_el9.7.0+222+ef1c61e1 | ALSA-2026:7350 |
| AlmaLinux 9 | v8-13.6-devel | 3:13.6.233.17-1.24.14.1.2.module_el9.7.0+222+ef1c61e1 | ALSA-2026:7350 |
| AlmaLinux 8 | nodejs +4 | 1:24.14.1-2.module_el8.10.0+4160+4819ac42 | ALSA-2026:7670 |
| AlmaLinux 8 | nodejs-nodemon | 3.0.3-1.module_el8.10.0+4061+f8ceeab9 | ALSA-2026:7670 |
| AlmaLinux 8 | nodejs-packaging +1 | 2021.06-6.module_el8.10.0+4086+70facd4a | ALSA-2026:7670 |
| AlmaLinux 8 | npm | 1:11.11.0-1.24.14.1.2.module_el8.10.0+4160+4819ac42 | ALSA-2026:7670 |
| AlmaLinux 8 | v8-13.6-devel | 3:13.6.233.17-1.24.14.1.2.module_el8.10.0+4160+4819ac42 | ALSA-2026:7670 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | nodejs24 | 1:24.14.1-2.el10_1 | RLSA-2026:7675 |
| Rocky Linux 9 | nodejs-nodemon | 3.0.3-3.module+el9.7.0+40025+0e0cf6b2 | RLSA-2026:7350 |
| Rocky Linux 9 | nodejs-packaging | 2021.06-6.module+el9.7.0+40052+e32ea525 | RLSA-2026:7350 |
| Rocky Linux 8 | nodejs-nodemon | 3.0.3-1.module+el8.10.0+2084+ab509703 | RLSA-2026:7670 |
| Rocky Linux 8 | nodejs-packaging | 2021.06-6.module+el8.10.0+40048+6d99f608 | RLSA-2026:7670 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | nodejs24 | 24.17.0-150700.15.11.1 | SUSE-SU-2026:2633-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | nodejs24 | 24.18.0-160000.1.1 | SUSE-SU-2026:22565-1 |
| SLES 16.0 | nodejs24 | 24.18.0-160000.1.1 | SUSE-SU-2026:22565-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | nodejs24 | 24.17.0-1.1 | openSUSE-SU-2026:11121-1 |
| openSUSE Leap 16.0 | nodejs24 | 24.18.0-160000.1.1 | openSUSE-SU-2026:21236-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | nodejs24 +4 | 1:24.14.0-1.amzn2023.0.2 | ALAS2023-2026-1526 |
| Amazon Linux 2023 | nodejs24-npm | 1:11.9.0-1.24.14.0.1.amzn2023.0.2 | ALAS2023-2026-1526 |
| Amazon Linux 2023 | v8-13.6-devel | 3:13.6.233.17-1.24.14.0.1.amzn2023.0.2 | ALAS2023-2026-1526 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | nodejs24 +4 | 1:24.14.1-2.0.2.el10_1 | ELSA-2026-7675 |
| Oracle Linux 10 | nodejs24-npm | 1:11.11.0-1.24.14.1.2.0.2.el10_1 | ELSA-2026-7675 |
| Oracle Linux 9 | nodejs +4 | 1:24.14.1-2.module+el9.7.0+90866+5a953a4c | ELSA-2026-7350 |
| Oracle Linux 9 | nodejs-nodemon | 3.0.3-3.module+el9.7.0+90866+5a953a4c | ELSA-2026-7350 |
| Oracle Linux 9 | nodejs-packaging +1 | 2021.06-6.module+el9.7.0+90866+5a953a4c | ELSA-2026-7350 |
| Oracle Linux 9 | npm | 1:11.11.0-1.24.14.1.2.module+el9.7.0+90866+5a953a4c | ELSA-2026-7350 |
| Oracle Linux 9 | v8-13.6-devel | 3:13.6.233.17-1.24.14.1.2.module+el9.7.0+90866+5a953a4c | ELSA-2026-7350 |
| Oracle Linux 8 | nodejs +4 | 1:24.14.1-2.module+el8.10.0+90873+35652ecc | ELSA-2026-7670 |
| Oracle Linux 8 | nodejs-nodemon | 3.0.3-1.module+el8.10.0+90873+35652ecc | ELSA-2026-7670 |
| Oracle Linux 8 | nodejs-packaging +1 | 2021.06-6.module+el8.10.0+90873+35652ecc | ELSA-2026-7670 |
| Oracle Linux 8 | npm | 1:11.11.0-1.24.14.1.2.module+el8.10.0+90873+35652ecc | ELSA-2026-7670 |
| Oracle Linux 8 | v8-13.6-devel | 3:13.6.233.17-1.24.14.1.2.module+el8.10.0+90873+35652ecc | ELSA-2026-7670 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | code-server | 4.110.1-r2 | — |
| Wolfi rolling | jitsucom-jitsu-rotor | 2.11.0-r17 | — |
| Wolfi rolling | renovate | 43.84.0-r1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | undici | >= 7.17.0, < 7.24.0 | 7.24.0 | GHSA-phc3-fgpg-7m6h |
Advisories 18
- ALSA-2026:7350 Important: nodejs:24 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:7675 Important: nodejs24 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:7670 Important: nodejs:24 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:7675 Red Hat Security Advisory: nodejs24 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:7670 Red Hat Security Advisory: nodejs:24 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:7350 Red Hat Security Advisory: nodejs:24 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- SUSE-SU-2026:22565-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Jul 15, 2026
- openSUSE-SU-2026:21236-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Jul 9, 2026
- SUSE-SU-2026:2633-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Jun 26, 2026
- openSUSE-SU-2026:11121-1 corepack24-24.17.0-1.1 on GA media SUSE / openSUSE Security Updates · Jun 26, 2026
- ELSA-2026-7675 Important: nodejs24 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jun 9, 2026
- WID-SEC-2026-0933 IBM App Connect Enterprise (Hono und Undici): Mehrere Schwachstellen BSI CERT-Bund (WID) · May 31, 2026
- RLSA-2026:7675 Important: nodejs24 security update Rocky Linux Security Advisories · Apr 15, 2026
- RLSA-2026:7670 Important: nodejs:24 security update Rocky Linux Security Advisories · Apr 13, 2026
- ELSA-2026-7670 Important: nodejs:24 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Apr 13, 2026
- RLSA-2026:7350 Important: nodejs:24 security update Rocky Linux Security Advisories · Apr 10, 2026
- ELSA-2026-7350 Important: nodejs:24 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Apr 10, 2026
- ALAS2023-2026-1526 Important: nodejs24 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 1, 2026