CVE-2026-48931

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Summary

CVECVE-2026-48931
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-22 20:16:29 UTC
Updated2026-06-23 15:16:35 UTC
DescriptionA 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**.

Risk And Classification

Primary CVSS: v3.0 3.7 LOW from [email protected]

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.002760000 probability, percentile 0.191160000 (date 2026-06-23)

Problem Types: CWE-367 | CWE-367 CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary3.7LOWCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
3.0CNADECLARED3.7LOWCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nodejs Node affected 22.22.3 22.22.3 semver Not specified
CNA Nodejs Node affected 24.16.0 24.16.0 semver Not specified
CNA Nodejs Node affected 26.3.0 26.3.0 semver Not specified

References

ReferenceSourceLinkTags
nodejs.org/en/blog/vulnerability/june-2026-security-releases [email protected] nodejs.org
jdstaerk.substack.com/p/nodejs-security-fix-silently-broke af854a3a-2127-422b-91ae-364da2661108 jdstaerk.substack.com
github.com/nodejs/node/issues/63989 af854a3a-2127-422b-91ae-364da2661108 github.com
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