CVE-2026-62389

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as a duplicate of CVE-2026-48779.

CVSS

No CVSS.

References

No reference.

Configurations

No configuration.

History

29 Jul 2026, 18:16

Type	Values Removed	Values Added
References	~~{'url': 'https://github.com/websockets/ws/commit/f197ac65140920bdcecdab74bfc69c2d7858e55d', 'source': 'disclosure@vulncheck.com'}~~ ~~{'url': 'https://github.com/websockets/ws/issues/2331', 'source': 'disclosure@vulncheck.com'}~~ ~~{'url': 'https://github.com/websockets/ws/releases/tag/8.21.1', 'source': 'disclosure@vulncheck.com'}~~ ~~{'url': 'https://www.vulncheck.com/advisories/ws-default-maxfragments-allows-memory-exhaustion-dos', 'source': 'disclosure@vulncheck.com'}~~
Summary	(en) ws before 8.21.1 contains a memory exhaustion vulnerability in lib/receiver.js where the fragment guard only triggers when fragment count reaches maxFragments, allowing attackers to exhaust memory by sending incomplete fragmented WebSocket messages. Attackers can send a text frame with FIN=0 followed by continuation frames without completing the sequence, causing each fragment to be stored as a separate Buffer object with significant overhead, enabling denial of service through heap exhaustion.	(en) Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as a duplicate of CVE-2026-48779.
CWE	~~CWE-770~~
CVSS	v2 : ~~unknown~~ v3 : ~~7.5~~	v2 : unknown v3 : unknown

15 Jul 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-15 18:16

Updated : 2026-07-29 18:16

NVD link : CVE-2026-62389

Mitre link : CVE-2026-62389

CVE.ORG link : CVE-2026-62389

JSON object : View

Products Affected

No product.

CWE

No CWE.