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**.
CVSS Details
- CVSS 3.0 Base Score: 6.2
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade nodejs-currentUpgrade nodejs | Aug 5, 2026 | Aug 4, 2026 |
| Amazon_linux_2023 | — | Upgrade nodejs24-docsUpgrade nodejs24-libsUpgrade nodejs24-develUpgrade nodejs24-libs-debuginfoUpgrade nodejs22-npmUpgrade nodejs22-develUpgrade nodejs24-full-i18nUpgrade nodejs22-debugsourceUpgrade nodejs22-libsUpgrade nodejs22-libs-debuginfoUpgrade nodejs24-npmUpgrade nodejs22-docsUpgrade nodejs24-debuginfoUpgrade nodejs22-debuginfoUpgrade nodejs22Upgrade v8-12.4-develUpgrade v8-13.6-develUpgrade nodejs24Upgrade nodejs22-full-i18nUpgrade nodejs24-debugsource | Aug 18, 2026 | Aug 4, 2026 |
| Redhat_linux | — | No solution exists | Aug 12, 2026 | Aug 4, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 12, 2026 | Aug 4, 2026 |
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