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TI-2020-06182 Aliases CVE-2020-7662GHSA-g78m-2chm-r7qv

Uncontrolled resource consumption in websocket-extensions

Priority LOW 38CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 3 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.

Summary

websocket-extensions npm module prior to 0.1.4 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.

Why it matters now

EPSS 0.03088 87th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial websocket-extensions (npm): 0.1.4Red Hat: 3 advisoriesRed Hat: 3 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—websocket-extensions (npm)before 0.1.40.1.4Patch availableCNA
—websocket-extensions (npm)before 0.1.40.1.4Patch availableGHSA-g78m-2chm-r7qv
  • websocket-extensions (npm) Vendor— Affected before 0.1.4 Fixed in 0.1.4 Patch available CNA
  • websocket-extensions (npm) Vendor— Affected before 0.1.4 Fixed in 0.1.4 Patch available GHSA-g78m-2chm-r7qv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:websocket-extensions_project:websocket-extensions:*:*:*:*:*:node.js:*:*before 0.1.4VulnerableWebsocket-extensions Project
  • cpe:2.3:a:websocket-extensions_project:websocket-extensions:*:*:*:*:*:node.js:*:* Versions before 0.1.4 Vulnerable ·Websocket-extensions Project

Remediation

  • Fix · CNA websocket-extensions (npm) Fixed in 0.1.4
  • Fix · GHSA-g78m-2chm-r7qv websocket-extensions (npm) Fixed in 0.1.4 Advisory →

Red Hat 3 advisories

  • RHSA-2020:4298 Released 2020-10-27 · Red Hat rating Moderate
    OpenShift Container Platform 4.6.1 image security update
    • Red Hat OpenShift Container Platform 4.6 openshift4/ose-ansible-operator, openshift4/ose-aws-machine-controllers, openshift4/ose-azure-machine-controllers +47
  • RHSA-2020:2861 Released 2020-07-07 · Red Hat rating Important
    Red Hat OpenShift Service Mesh 1.0 servicemesh-grafana security update
    • OpenShift Service Mesh 1.0 servicemesh-grafana-6.2.2-38.el8, servicemesh-grafana-prometheus-6.2.2-38.el8
  • RHSA-2020:2796 Released 2020-07-01 · Red Hat rating Important
    Red Hat OpenShift Service Mesh servicemesh-grafana security update
    • OpenShift Service Mesh 1.1 servicemesh-grafana-6.4.3-11.el8, servicemesh-grafana-prometheus-6.4.3-11.el8

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
OpenShift Service Mesh 1.0Fixed RHSA-2020:2861
OpenShift Service Mesh 1.1Fixed RHSA-2020:2796
Red Hat OpenShift Container Platform 4.6Fixed RHSA-2020:4298
Not affected: 1 product
  • Red Hat OpenShift Container Platform 4.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-7662
  2. 2026-10-03 Alias added: GHSA-g78m-2chm-r7qv

References

Exploit 2

Patch 1

Advisory 1

Other 1

  • TI-2020-06183 Uncontrolled resource consumption in websocket-extensions CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences