CVE-2020-7693

Denial of Service (DoS)

MEDIUM
5.3
CVSS Score
Published: July 9, 2020 at 01:20 PM UTC
Updated: June 17, 2026 at 03:25 AM UTC
1 product affected across 1 vendorSockjs

Using sockjs by N/A?

Get instant alerts when new vulnerabilities affect sockjs - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.3
Exploit prediction
EPSS 5%

Description

Incorrect handling of Upgrade header with the value websocket leads in crashing of containers hosting sockjs apps. This affects the package sockjs before 0.3.20.

Affected

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

v < 0.3.20
Affected range stops below 0.3.20, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

x_refsource_MISCExploitThird Party Advisory
https://github.com/andsnw/sockjs-dos-py
x_refsource_MISCExploitPatchThird Party Advisory
https://github.com/sockjs/sockjs-node/issues/252
x_refsource_MISCPatchThird Party Advisory
https://github.com/sockjs/sockjs-node/pull/265
x_refsource_MISCExploitThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-575448
x_refsource_MISCExploitThird Party Advisory
https://snyk.io/vuln/SNYK-JS-SOCKJS-575261

CVSS

5.3MEDIUMsnyk
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-755

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card