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CVE-2026-48931 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-48931

CVE-2026-48931

LOW3.7

A flaw in Node

Published Jun 22, 2026

Modified 3 days ago

Details

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.

Affected Packages

Node.js

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1809) / Server 2019Windows 10 (1903)Windows 10 (1909)

References

WEB

http://www.openwall.com/lists/oss-security/2026/07/02/2

WEB

https://github.com/nodejs/node/issues/63989

WEB

https://jdstaerk.substack.com/p/nodejs-security-fix-silently-broke

WEB

https://nodejs.org/en/blog/vulnerability/june-2026-security-releases

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-48931

CVSS Analysis

CVSS v3.1

3.7

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

LowI:L

Availability

NoneA:N

3.7/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

Other

CWE-367

Ecosystems(19)

Windows 10 (1507)Windows 10 (1607) / Server 2016 Windows 10 (1809) / Server 2019 Windows 10 (1903)Windows 10 (1909)

Timeline

PublishedJun 22, 2026

ModifiedJul 3, 2026