Description
A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in the synchronous `node:zlib` APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected.
Repeated exploitation of this condition can result in a denial of service.
This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nodejs | node | 26.5.0 – ≤ 26.5.0, 24.18.0 – ≤ 24.18.0, 22.23.1 – ≤ 22.23.1 | — |
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 | 24.19.0+dfsg+~cs24.13.3-1 | — |
| Debian 13 | nodejs | No fix yet | — |
| Debian 12 | nodejs | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | nodejs | No fix yet | — |
| Ubuntu 26.04 LTS | 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 | nodejs +5 | 1:22.23.2-1.el10_2 | RHSA-2026:61376 |
| RHEL 10 | nodejs-npm | 1:10.9.8-1.22.23.2.1.el10_2 | RHSA-2026:61376 |
| RHEL 10 | nodejs24 +4 | 1:24.19.0-1.el10_2 | RHSA-2026:61377 |
| RHEL 10 | nodejs24-npm | 1:11.17.0-1.24.19.0.1.el10_2 | RHSA-2026:61377 |
| RHEL 10 | nodejs26 +4 | 1:26.12.1-3.el10_3 | RHSA-2026:98619 |
| RHEL 10 | nodejs26-npm | 1:11.20.0-1.26.12.1.3.el10_3 | RHSA-2026:98619 |
| RHEL 9 | nodejs +4 | 1:22.23.2-1.module+el9.8.0+24709+804d6b5b | RHSA-2026:97855, RHSA-2026:61386, RHSA-2026:61383 |
| RHEL 9 | nodejs-nodemon | 3.1.14-1.module+el9.9.0+24923+ac50c00f | RHSA-2026:97855, RHSA-2026:61386, RHSA-2026:61383 |
| RHEL 9 | nodejs-packaging +1 | 2021.06-6.module+el9.8.0+24708+e71d2e1d | RHSA-2026:97855, RHSA-2026:61386, RHSA-2026:61383 |
| RHEL 9 | npm | 1:10.9.8-1.22.23.2.1.module+el9.8.0+24709+804d6b5b | RHSA-2026:97855, RHSA-2026:61386, RHSA-2026:61383 |
| RHEL 9 | v8-12.4-devel | 3:12.4.254.21-1.22.23.2.1.module+el9.8.0+24709+804d6b5b | RHSA-2026:61383 |
| RHEL 9 | v8-13.6-devel | 3:13.6.233.17-1.24.19.0.1.module+el9.8.0+24708+e71d2e1d | RHSA-2026:61386 |
| RHEL 9 | v8-14.6-devel | 3:14.6.202.34-1.26.8.2.1.module+el9.9.0+24929+16cef9a5 | RHSA-2026:97855 |
| RHEL 8 | nodejs +4 | 1:22.23.2-1.module+el8.10.0+24710+c2e9b41f | RHSA-2026:62583, RHSA-2026:62219 |
| RHEL 8 | nodejs-nodemon | 3.1.14-2.module+el8.10.0+24710+c2e9b41f | RHSA-2026:62583, RHSA-2026:62219 |
| RHEL 8 | nodejs-packaging +1 | 2021.06-6.module+el8.10.0+24710+c2e9b41f | RHSA-2026:62583, RHSA-2026:62219 |
| RHEL 8 | npm | 1:10.9.8-1.22.23.2.1.module+el8.10.0+24710+c2e9b41f | RHSA-2026:62583, RHSA-2026:62219 |
| RHEL 8 | v8-12.4-devel | 3:12.4.254.21-1.22.23.2.1.module+el8.10.0+24710+c2e9b41f | RHSA-2026:62219 |
| RHEL 8 | v8-13.6-devel | 3:13.6.233.17-1.24.19.0.1.module+el8.10.0+24711+b610b202 | RHSA-2026:62583 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | nodejs +5 | 1:22.23.2-1.el10_0 | RHSA-2026:64817 |
| RHEL 10.0 EUS | nodejs-npm | 1:10.9.8-1.22.23.2.1.el10_0 | RHSA-2026:64817 |
| RHEL 9.6 EUS | nodejs +4 | 1:22.23.2-1.module+el9.6.0+24769+299a7e3a | RHSA-2026:62416 |
| RHEL 9.6 EUS | nodejs-nodemon | 3.1.14-2.module+el9.6.0+24789+4011c12f | RHSA-2026:62416 |
| RHEL 9.6 EUS | nodejs-packaging +1 | 2021.06-4.module+el9.6.0+23473+45664c2d | RHSA-2026:62416 |
| RHEL 9.6 EUS | npm | 1:10.9.8-1.22.23.2.1.module+el9.6.0+24769+299a7e3a | RHSA-2026:62416 |
| RHEL 9.6 EUS | v8-12.4-devel | 3:12.4.254.21-1.22.23.2.1.module+el9.6.0+24769+299a7e3a | RHSA-2026:62416 |
| Red Hat Hardened Images 1 | nodejs22 +6 | 1:22.23.2-2.3.hum1 | RHSA-2026:48305 |
| Red Hat Hardened Images 1 | nodejs22-npm | 1:10.9.8-1.22.23.2.2.3.hum1 | RHSA-2026:48305 |
| Red Hat Hardened Images 1 | nodejs24 +6 | 1:24.18.1-0.1.hum1 | RHSA-2026:48537 |
| Red Hat Hardened Images 1 | nodejs24-npm | 1:11.16.0-1.24.18.1.0.1.hum1 | RHSA-2026:48537 |
| Red Hat Hardened Images 1 | nodejs26 +6 | 1:26.7.0-1.5.1.hum1 | RHSA-2026:52990 |
| Red Hat Hardened Images 1 | nodejs26-npm | 1:11.19.0-1.26.7.0.1.5.1.hum1 | RHSA-2026:52990 |
| Red Hat Hardened Images 1 | v8-14.6-devel | 3:14.6.202.34-1.26.7.0.1.5.1.hum1 | RHSA-2026:52990 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | nodejs +4 | 1:22.23.2-1.el10_2 | ALSA-2026:61376 |
| AlmaLinux 10 | nodejs-npm | 1:10.9.8-1.22.23.2.1.el10_2 | ALSA-2026:61376 |
| AlmaLinux 10 | nodejs24 +4 | 1:24.19.0-1.el10_2 | ALSA-2026:61377 |
| AlmaLinux 10 | nodejs24-npm | 1:11.17.0-1.24.19.0.1.el10_2 | ALSA-2026:61377 |
| AlmaLinux 9 | nodejs +4 | 1:22.23.2-1.module_el9.8.0+302+959ebcd4 | ALSA-2026:61386, ALSA-2026:61383 |
| AlmaLinux 9 | nodejs-nodemon | 3.1.14-2.module_el9.8.0+291+0bb98cce | ALSA-2026:61386, ALSA-2026:61383 |
| AlmaLinux 9 | nodejs-packaging +1 | 2021.06-6.module_el9.7.0+209+ecf6523e | ALSA-2026:61386, ALSA-2026:61383 |
| AlmaLinux 9 | npm | 1:10.9.8-1.22.23.2.1.module_el9.8.0+302+959ebcd4 | ALSA-2026:61386, ALSA-2026:61383 |
| AlmaLinux 9 | v8-12.4-devel | 3:12.4.254.21-1.22.23.2.1.module_el9.8.0+302+959ebcd4 | ALSA-2026:61383 |
| AlmaLinux 9 | v8-13.6-devel | 3:13.6.233.17-1.24.19.0.1.module_el9.8.0+301+084fac05 | ALSA-2026:61386 |
| AlmaLinux 8 | nodejs +4 | 1:22.23.2-1.module_el8.10.0+4265+75d28086 | ALSA-2026:62583, ALSA-2026:62219 |
| AlmaLinux 8 | nodejs-nodemon | 3.1.14-2.module_el8.10.0+4250+09238ed4 | ALSA-2026:62583, ALSA-2026:62219 |
| AlmaLinux 8 | nodejs-packaging +1 | 2021.06-6.module_el8.10.0+4086+70facd4a | ALSA-2026:62583, ALSA-2026:62219 |
| AlmaLinux 8 | npm | 1:10.9.8-1.22.23.2.1.module_el8.10.0+4265+75d28086 | ALSA-2026:62583, ALSA-2026:62219 |
| AlmaLinux 8 | v8-12.4-devel | 3:12.4.254.21-1.22.23.2.1.module_el8.10.0+4265+75d28086 | ALSA-2026:62219 |
| AlmaLinux 8 | v8-13.6-devel | 3:13.6.233.17-1.24.19.0.1.module_el8.10.0+4268+8e07aa5a | ALSA-2026:62583 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | nodejs-nodemon | 3.1.14-1.module+el9.8.0+40263+faa47049 | RLSA-2026:97855 |
| Rocky Linux 9 | nodejs-packaging | 2021.06-6.module+el9.7.0+40052+e32ea525 | RLSA-2026:97855 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | nodejs22 | 22.23.2-150700.3.18.1 | SUSE-SU-2026:3557-1 |
| SLES 15 SP7 | nodejs24 | 24.18.1-150700.15.16.1 | SUSE-SU-2026:3520-1 |
| SLES 15 SP6 | nodejs20 | 20.20.2-150600.3.21.1 | SUSE-SU-2026:3929-1 |
| SLES 15 SP6 | nodejs22 | 22.23.2-150600.13.24.1 | SUSE-SU-2026:3521-1 |
| SLES 15 SP5 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
| SLES 15 SP5 | nodejs20 | 20.20.2-150500.11.30.1 | SUSE-SU-2026:3930-1 |
| 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 | 22.23.2-160000.1.1 | SUSE-SU-2026:23154-1, SUSE-SU-2026:23130-1 |
| SLES for SAP 16.0 | nodejs24 | 24.18.1-160000.1.1 | SUSE-SU-2026:23155-1, SUSE-SU-2026:23131-1 |
| SLES for SAP 15 SP6 | nodejs20 | 20.20.2-150600.3.21.1 | SUSE-SU-2026:3929-1 |
| SLES for SAP 15 SP6 | nodejs22 | 22.23.2-150600.13.24.1 | SUSE-SU-2026:3521-1 |
| SLES for SAP 15 SP5 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
| SLES for SAP 15 SP5 | nodejs20 | 20.20.2-150500.11.30.1 | SUSE-SU-2026:3930-1 |
| 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 | 22.23.2-160000.1.1 | SUSE-SU-2026:23154-1, SUSE-SU-2026:23130-1 |
| SLES 16.0 | nodejs24 | 24.18.1-160000.1.1 | SUSE-SU-2026:23155-1, SUSE-SU-2026:23131-1 |
| SLE HPC 15 SP5 | nodejs18 | 18.20.8-150400.9.39.1 | SUSE-SU-2026:4261-1 |
| SLE HPC 15 SP5 | nodejs20 | 20.20.2-150500.11.30.1 | SUSE-SU-2026:3930-1 |
| 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 | 24.18.1-1.1 | openSUSE-SU-2026:11439-1 |
| openSUSE Tumbleweed | nodejs26 | 26.5.1-1.1 | openSUSE-SU-2026:11440-1 |
| openSUSE Leap 16.0 | nodejs22 | 22.23.2-160000.1.1 | openSUSE-SU-2026:21545-1 |
| openSUSE Leap 16.0 | nodejs24 | 24.18.1-160000.1.1 | openSUSE-SU-2026:21546-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nodejs | 24.18.1-r0 | — |
| Alpine v3.24 | nodejs-current | 26.5.1-r0 | — |
| Alpine v3.23 | nodejs | 24.18.1-r0 | — |
| Alpine v3.22 | nodejs | 22.23.2-r0 | — |
| Alpine v3.21 | nodejs | 22.23.2-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | nodejs22 +4 | 1:22.23.2-1.amzn2023.0.2 | ALAS2023-2026-2060 |
| Amazon Linux 2023 | nodejs22-npm | 1:10.9.8-1.22.23.2.1.amzn2023.0.2 | ALAS2023-2026-2060 |
| Amazon Linux 2023 | nodejs24 +4 | 1:24.18.1-1.amzn2023.0.2 | ALAS2023-2026-2059 |
| Amazon Linux 2023 | nodejs24-npm | 1:11.16.0-1.24.18.1.1.amzn2023.0.2 | ALAS2023-2026-2059 |
| Amazon Linux 2023 | v8-12.4-devel | 3:12.4.254.21-1.22.23.2.1.amzn2023.0.2 | ALAS2023-2026-2060 |
| Amazon Linux 2023 | v8-13.6-devel | 3:13.6.233.17-1.24.18.1.1.amzn2023.0.2 | ALAS2023-2026-2059 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | nodejs-20 +1 | No fix yet | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
CompleteTech-Security/node-cve-2026-58045-check ★ 0 · Oct 23, 2026
Offline Node.js evidence checker for CVE-2026-58045: zlib synchronous API spoofed TypedArray crash. Single-file Python; JSON/CSV/HTML reports; no exploit payloads.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 39
- RHSA-2026:98619 Red Hat Security Advisory: nodejs26 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:97855 Red Hat Security Advisory: nodejs:26 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:48305 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:48537 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:52990 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:64817 Red Hat Security Advisory: nodejs22 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- WID-SEC-2026-2585 Node.js: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- RLSA-2026:97855 Important: nodejs:26 security update Rocky Linux Security Advisories · Nov 11, 2026
- ALSA-2026:61383 Important: nodejs:22 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:61377 Important: nodejs24 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:61386 Important: nodejs:24 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:61376 Important: nodejs22 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:62583 Important: nodejs:24 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:62219 Important: nodejs:22 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:61377 Red Hat Security Advisory: nodejs24 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:62583 Red Hat Security Advisory: nodejs:24 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:62416 Red Hat Security Advisory: nodejs:22 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:62219 Red Hat Security Advisory: nodejs:22 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:61386 Red Hat Security Advisory: nodejs:24 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:61383 Red Hat Security Advisory: nodejs:22 security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:61376 Red Hat Security Advisory: nodejs22 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-2026:3929-1 Security update for nodejs20 SUSE / openSUSE Security Updates · Sep 10, 2026
- SUSE-SU-2026:3930-1 Security update for nodejs20 SUSE / openSUSE Security Updates · Sep 10, 2026
- ALAS2023-2026-2059 Important: nodejs24 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Aug 21, 2026
- ALAS2023-2026-2060 Important: nodejs22 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Aug 17, 2026
- SUSE-SU-2026:23131-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Aug 14, 2026
- SUSE-SU-2026:23130-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Aug 14, 2026
- SUSE-SU-2026:23155-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Aug 14, 2026
- SUSE-SU-2026:23154-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Aug 14, 2026
- openSUSE-SU-2026:21545-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Aug 12, 2026
- openSUSE-SU-2026:21546-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Aug 12, 2026
- SUSE-SU-2026:3557-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Aug 12, 2026
- SUSE-SU-2026:3520-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Aug 7, 2026
- SUSE-SU-2026:3521-1 Security update for nodejs22 SUSE / openSUSE Security Updates · Aug 7, 2026
- openSUSE-SU-2026:11440-1 nodejs26-26.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Aug 4, 2026
- openSUSE-SU-2026:11439-1 corepack24-24.18.1-1.1 on GA media SUSE / openSUSE Security Updates · Aug 4, 2026