CVE-2021-26272EPSS p82.1%

CVE-2021-26272CVE-2021-26272

ckeditor / ckeditor

Description

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).

Scoring

CVSS 6.5 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS2.22% probability of exploitation · percentile 82.1% · 2026-10-05T12:00:23Z
Last modified2026-08-25
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.