CVE-2020-11050

Improper Validation of Certificate with Host Mismatch in Java-WebSocket

HIGH

8.1

CVSS Score

Published: May 7, 2020 at 08:15 PM UTC

Updated: June 17, 2026 at 02:48 AM UTC

2 products affected across 2 vendorsJava WebsocketJava-WebSocket

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Severity

HIGH8.1

Exploit prediction

EPSS 0.8%

Description

In Java-WebSocket less than or equal to 1.4.1, there is an Improper Validation of Certificate with Host Mismatch where WebSocketClient does not perform SSL hostname validation. This has been patched in 1.5.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Java Websocket · Java Websocket Project

95%

v ≤ 1.4.1

Java-WebSocket · Tootallnate

60%

<= 1.4.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://github.com/TooTallNate/Java-WebSocket/security/advisories/GHSA-gw55-jm4h-x339

CVSS

8.1HIGH[email protected]

Attack Vector: NETWORK
Complexity: HIGH
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-297CWE-295

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