Read the docs
TI-2021-08116 Aliases CVE-2021-26272GHSA-wpvm-wqr4-p7cw

It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by…

Priority LOW 33CWE-829Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-829.

Summary

It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).

Why it matters now

EPSS 0.0235 83rd percentileScored 2026-11-07
Fix Fixed ckeditor4 (npm): 4.16.0

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—ckeditor4 (npm)before 4.16.04.16.0Patch availableGHSA-wpvm-wqr4-p7cw
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • ckeditor4 (npm) Vendor— Affected before 4.16.0 Fixed in 4.16.0 Patch available GHSA-wpvm-wqr4-p7cw

CPE configurations NVD · 16

CPEVersionsRoleVendor
cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:*4.0 to before 4.16Vulnerableckeditor
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.5:*:*:*:*:*:*:*9.3.5VulnerableOracle
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:*9.3.6VulnerableOracle
cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*before 21.1.0VulnerableOracle
cpe:2.3:a:oracle:banking_party_management:2.7.0:*:*:*:*:*:*:*2.7.0VulnerableOracle
cpe:2.3:a:oracle:commerce_merchandising:*:*:*:*:*:*:*:*11.3.0 – 11.3.2VulnerableOracle
cpe:2.3:a:oracle:commerce_merchandising:11.1.0:*:*:*:*:*:*:*11.1.0VulnerableOracle
cpe:2.3:a:oracle:commerce_merchandising:11.2.0:*:*:*:*:*:*:*11.2.0VulnerableOracle
cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:*8.0.6 – 8.0.9VulnerableOracle
cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.0:*:*:*:*:*:*:*8.1.0VulnerableOracle
  • cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:* Versions 4.0 to before 4.16 Vulnerable ·ckeditor
  • cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.5:*:*:*:*:*:*:* Versions 9.3.5 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:* Versions 9.3.6 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:* Versions before 21.1.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:banking_party_management:2.7.0:*:*:*:*:*:*:* Versions 2.7.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:commerce_merchandising:*:*:*:*:*:*:*:* Versions 11.3.0 – 11.3.2 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:commerce_merchandising:11.1.0:*:*:*:*:*:*:* Versions 11.1.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:commerce_merchandising:11.2.0:*:*:*:*:*:*:* Versions 11.2.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:* Versions 8.0.6 – 8.0.9 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.0:*:*:*:*:*:*:* Versions 8.1.0 Vulnerable ·Oracle
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.1:*:*:*:*:*:*:*8.1.1VulnerableOracle
cpe:2.3:a:oracle:financial_services_model_management_and_governance:*:*:*:*:*:*:*:*8.0.8.0.0 – 8.1.0.0.0VulnerableOracle
cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:*before 9.2.6.0VulnerableOracle
cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:*up to 21.9VulnerableOracle
cpe:2.3:a:oracle:webcenter_sites:12.2.1.3.0:*:*:*:*:*:*:*12.2.1.3.0VulnerableOracle
cpe:2.3:a:oracle:webcenter_sites:12.2.1.4.0:*:*:*:*:*:*:*12.2.1.4.0VulnerableOracle
  • cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.1:*:*:*:*:*:*:* Versions 8.1.1 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:financial_services_model_management_and_governance:*:*:*:*:*:*:*:* Versions 8.0.8.0.0 – 8.1.0.0.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:* Versions before 9.2.6.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:* Versions up to 21.9 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:webcenter_sites:12.2.1.3.0:*:*:*:*:*:*:* Versions 12.2.1.3.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:webcenter_sites:12.2.1.4.0:*:*:*:*:*:*:* Versions 12.2.1.4.0 Vulnerable ·Oracle

Remediation

  • Fix · GHSA-wpvm-wqr4-p7cw ckeditor4 (npm) Fixed in 4.16.0 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-26272
  2. 2026-10-03 Alias added: GHSA-wpvm-wqr4-p7cw

References

Patch 2

Advisory 4

Other 1

Sources

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