Description
A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior could be exploited as a timing oracle to infer HMAC values.
Node.js already provides timing-safe comparison primitives used elsewhere in the codebase, indicating this is an oversight rather than an intentional design decision.
This vulnerability affects **20.x, 22.x, 24.x, and 25.x**.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nodejs | node | 20.20.1 – ≤ 20.20.1, 22.22.1 – ≤ 22.22.1, 24.14.0 – ≤ 24.14.0, 25.8.1 – ≤ 25.8.1, 4.0 – < 4.*, 5.0 – < 5.*, 6.0 – < 6.*, 7.0 – < 7.*, 8.0 – < 8.*, 9.0 – < 9.*, 10.0 – < 10.*, 11.0 – < 11.*, 12.0 – < 12.*, 13.0 – < 13.*, 14.0 – < 14.*, 15.0 – < 15.*, 16.0 – < 16.*, 17.0 – < 17.*, 18.0 – < 18.*, 19.0… | 4.* |
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 | nodejs | 22.22.2+dfsg+~cs22.19.15-1 | — |
| Debian 13 | nodejs | 20.19.2+dfsg-1+deb13u2 | DSA-6183-1 |
| Debian 12 | nodejs | 18.20.4+dfsg-1~deb12u2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | nodejs | No fix yet | — |
| Ubuntu 26.04 LTS | nodejs | No fix yet | — |
| Ubuntu 25.10 | nodejs | No fix yet | — |
| Ubuntu 24.04 LTS | nodejs | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 20.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 18.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 16.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 14.04 LTS | nodejs | 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 | nodejs22 | 22.22.2-150700.3.9.1 | SUSE-SU-2026:1478-1 |
| SLES 15 SP7 | nodejs24 | 24.14.1-150700.15.8.1 | SUSE-SU-2026:1299-1 |
| SLES 15 SP6 | nodejs20 | 20.20.2-150600.3.18.1 | SUSE-SU-2026:1363-1 |
| SLES 15 SP6 | nodejs22 | 22.22.2-150600.13.15.1 | SUSE-SU-2026:1509-1 |
| SLES 15 SP5 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
| SLES 15 SP5 | nodejs20 | 20.20.2-150500.11.27.1 | SUSE-SU-2026:1371-1 |
| SLES 15 SP4 | nodejs16 | 16.20.2-150400.3.42.1 | SUSE-SU-2026:4355-1 |
| SLES 15 SP4 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
| SLES 12 SP5 | nodejs18 | 18.20.8-8.44.1 | SUSE-SU-2026:4248-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | nodejs22 | 22.23.0-160000.1.1 | SUSE-SU-2026:22368-1 |
| SLES for SAP 16.0 | nodejs24 | 24.14.1-160000.1.1 | SUSE-SU-2026:21181-1 |
| SLES for SAP 15 SP6 | nodejs20 | 20.20.2-150600.3.18.1 | SUSE-SU-2026:1363-1 |
| SLES for SAP 15 SP6 | nodejs22 | 22.22.2-150600.13.15.1 | SUSE-SU-2026:1509-1 |
| SLES for SAP 15 SP5 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
| SLES for SAP 15 SP5 | nodejs20 | 20.20.2-150500.11.27.1 | SUSE-SU-2026:1371-1 |
| SLES for SAP 15 SP4 | nodejs16 | 16.20.2-150400.3.42.1 | SUSE-SU-2026:4355-1 |
| SLES for SAP 15 SP4 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
| SLES 16.0 | nodejs22 | 22.23.0-160000.1.1 | SUSE-SU-2026:22368-1 |
| SLES 16.0 | nodejs24 | 24.14.1-160000.1.1 | SUSE-SU-2026:21181-1 |
| SLE HPC 15 SP5 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
| SLE HPC 15 SP5 | nodejs20 | 20.20.2-150500.11.27.1 | SUSE-SU-2026:1371-1 |
| SLE HPC 15 SP4 | nodejs16 | 16.20.2-150400.3.42.1 | SUSE-SU-2026:4355-1 |
| SLE HPC 15 SP4 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | nodejs24 | 24.14.1-1.1 | openSUSE-SU-2026:10504-1 |
| openSUSE Tumbleweed | nodejs26 | 26.3.1-1.1 | openSUSE-SU-2026:11110-1 |
| openSUSE Leap 16.0 | nodejs22 | 22.23.0-160000.1.1 | openSUSE-SU-2026:21058-1 |
| openSUSE Leap 16.0 | nodejs24 | 24.14.1-160000.1.1 | openSUSE-SU-2026:20519-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nodejs | 24.14.1-r0 | — |
| Alpine v3.23 | nodejs | 24.14.1-r0 | — |
| Alpine v3.22 | nodejs | 22.22.2-r0 | — |
| Alpine v3.21 | nodejs | 22.22.2-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | nodejs20 +4 | 1:20.20.2-1.amzn2023.0.1 | ALAS2023-2026-1577 |
| Amazon Linux 2023 | nodejs20-npm | 1:10.8.2-1.20.20.2.1.amzn2023.0.1 | ALAS2023-2026-1577 |
| Amazon Linux 2023 | nodejs22 +4 | 1:22.22.2-1.amzn2023.0.1 | ALAS2023-2026-1576 |
| Amazon Linux 2023 | nodejs22-npm | 1:10.9.7-1.22.22.2.1.amzn2023.0.1 | ALAS2023-2026-1576 |
| Amazon Linux 2023 | nodejs24 +4 | 1:24.14.1-1.amzn2023.0.1 | ALAS2023-2026-1578 |
| Amazon Linux 2023 | nodejs24-npm | 1:11.11.0-1.24.14.1.1.amzn2023.0.1 | ALAS2023-2026-1578 |
| Amazon Linux 2023 | v8-11.3-devel | 3:11.3.244.8-1.20.20.2.1.amzn2023.0.1 | ALAS2023-2026-1577 |
| Amazon Linux 2023 | v8-12.4-devel | 3:12.4.254.21-1.22.22.2.1.amzn2023.0.1 | ALAS2023-2026-1576 |
| Amazon Linux 2023 | v8-13.6-devel | 3:13.6.233.17-1.24.14.1.1.amzn2023.0.1 | ALAS2023-2026-1578 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | nodejs | 20.14.0-15 | — |
| Azure Linux 3 | nodejs24 | 24.14.1-1 | — |
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 | nodejs-16 +3 | No fix yet | — |
| Wolfi rolling | nodejs-22 | 22.22.3-r0 | — |
Advisories 31
- WID-SEC-2026-0843 Node.js: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- 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-2026:4355-1 Security update for nodejs16 SUSE / openSUSE Security Updates · Sep 29, 2026
- SUSE-SU-2026:4261-1 Security update for nodejs18 SUSE / openSUSE Security Updates · Sep 18, 2026
- SUSE-SU-2026:4248-1 Security update for nodejs18 SUSE / openSUSE Security Updates · Sep 18, 2026
- SUSE-SU-2026:22368-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Jul 2, 2026
- openSUSE-SU-2026:21058-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Jun 30, 2026
- openSUSE-SU-2026:11110-1 nodejs26-26.3.1-1.1 on GA media SUSE / openSUSE Security Updates · Jun 24, 2026
- ELSA-2026-7675 Important: nodejs24 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jun 9, 2026
- openSUSE-SU-2026:20519-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Apr 22, 2026
- SUSE-SU-2026:21181-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Apr 22, 2026
- SUSE-SU-2026:1509-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Apr 22, 2026
- SUSE-SU-2026:1478-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Apr 21, 2026
- SUSE-SU-2026:1363-1 Security update for nodejs20 SUSE / openSUSE Security Updates · Apr 16, 2026
- SUSE-SU-2026:1371-1 Security update for nodejs20 SUSE / openSUSE Security Updates · Apr 16, 2026
- RLSA-2026:7675 Important: nodejs24 security update Rocky Linux Security Advisories · Apr 15, 2026
- SUSE-SU-2026:1299-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Apr 14, 2026
- ALAS2023-2026-1576 Important: nodejs22 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 13, 2026
- ALAS2023-2026-1577 Important: nodejs20 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 13, 2026
- ALAS2023-2026-1578 Important: nodejs24 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 13, 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
- openSUSE-SU-2026:10504-1 corepack24-24.14.1-1.1 on GA media SUSE / openSUSE Security Updates · Apr 9, 2026
- DSA-6183-1 nodejs - security update Debian Security (DSA / DLA) · Mar 29, 2026