CVEvulnerability

CVE-2026-48779

7.5 HIGH Published 2026-06-17 Modified 2026-10-26 Official page ↗
Status
Modified
Published
2026-06-17
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-1050, CWE-400, CWE-770

Description

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.

Affected configurations

• ws project ws (>= 1.1.0 < 5.2.5) • ws project ws (>= 6.0.0 < 6.2.4) • ws project ws (>= 7.0.0 < 7.5.11) • ws project ws (>= 8.0.0 < 8.21.0)

Related

Weakness · CWE (3)

  • CWE-1050 Excessive Platform Resource Consumption within a Loop weakness
  • CWE-400 Uncontrolled Resource Consumption weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References