Name: CVE-2026-48931: Time-of-check Time-of-use (TOCTOU) Race Condition
Creator: Rapid7
Published: 2026-06-22T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-48931, CWE-367, CVSS 3.7, EPSS 0.00371

A flaw in Node.js HTTP Agent can cause a client to accept as valid a response that is send before the client has sent the request. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

CVSS Details

CVSS 3.1 Base Score: 3.7
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade nodejs	Jun 23, 2026	Jun 22, 2026
Amazon_linux_2023	—	Upgrade nodejs22-debugsourceUpgrade nodejs22-debuginfoUpgrade nodejs22-libs-debuginfoUpgrade v8-13.6-develUpgrade nodejs24-develUpgrade nodejs24Upgrade nodejs22Upgrade nodejs24-npmUpgrade nodejs22-full-i18nUpgrade nodejs24-libsUpgrade nodejs24-debuginfoUpgrade nodejs24-docsUpgrade v8-12.4-develUpgrade nodejs24-full-i18nUpgrade nodejs24-libs-debuginfoUpgrade nodejs22-libsUpgrade nodejs22-npmUpgrade nodejs22-docsUpgrade nodejs24-debugsourceUpgrade nodejs22-devel	Jul 8, 2026	Jun 22, 2026
Debian	—	Upgrade nodejs	Sep 30, 2026	Jun 22, 2026
Redhat_linux	—	No solution exists	Aug 17, 2026	Jun 22, 2026
Vmware Photon_os	—	Use 'tdnf update' to upgrade all packages to the latest version.	Jul 2, 2026	Jun 22, 2026

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CVSS Details

Covered by Rapid7

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