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Vulnerability IntelligenceUBUNTU-CVE-2026-62389

UBUNTU-CVE-2026-62389

HIGH8.5

(ws before 8.21.1 contains a memory exhaustion vulnerability in lib/rec ...)

Published Jul 16, 2026

Modified 5 days ago

Details

(ws before 8.21.1 contains a memory exhaustion vulnerability in lib/rec ...)

Affected Packages

node-ws

Ubuntu 16.04 LTS

Affected versions:

0.7.2+ds1.349b7460-11.0.1+ds1.e6ddaae4-1

node-ws

Ubuntu 18.04 LTS

Affected versions:

1.1.0+ds1.e6ddaae4-3build11.1.0+ds1.e6ddaae4-3ubuntu1

node-ws

Ubuntu 20.04 LTS

Affected versions:

1.1.0+ds1.e6ddaae4-57.2.1-27.2.1-3

References

https://github.com/websockets/ws/issues/2331

https://ubuntu.com/security/CVE-2026-62389

https://www.cve.org/CVERecord?id=CVE-2026-62389

CVSS Analysis

CVSS v4.0

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

NoneVC:N

Vuln. Integrity

NoneVI:N

Vuln. Availability

HighVA:H

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Upstream

Ecosystems

Ubuntu 16.04 LTS Ubuntu 18.04 LTS Ubuntu 20.04 LTS

Timeline

PublishedJul 16, 2026

ModifiedJul 17, 2026

UBUNTU-CVE-2026-62389 | Mondoo Vulnerability Intelligence