CVE-2026-26047 MEDIUM

CVE-2026-26047: Moodle: moodle: uncontrolled resource consumption in tex formula editor leading to denial of service

Weakness CWE-400
Published February 21, 2026
Last update February 23, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

A denial-of-service vulnerability was identified in Moodle’s TeX formula editor. When rendering TeX content using mimetex, insufficient execution time limits could allow specially crafted formulas to consume excessive server resources. An authenticated user could abuse this behavior to degrade performance or cause service interruption.

Key dates

02Disclosure timeline

February 21, 2026 CVE published
February 23, 2026 Record updated