Vulnerability/
REDHAT-BUG-2440905

REDHAT-BUG-2440905

Published Feb 19, 2026

Updated

A Denial-of-Service vulnerability exists in Moodle’s TeX formula editor due to missing execution time controls during TeX rendering with mimetex. An authenticated user can submit specially crafted TeX content that causes excessive CPU consumption, resulting in degraded performance or service outage. While confidentiality and integrity are not impacted, availability of the Moodle instance may be significantly affected.

Affected Software

1 affected component

Moodle Moodle

Event History

Feb 19, 2026

Data Sourced

via Red Hat·08:59 AM

DescriptionSeverityAffected Software

Frequently Asked Questions

What is the severity of REDHAT-BUG-2440905?

The severity of REDHAT-BUG-2440905 is categorized as a Denial-of-Service vulnerability.

How do I fix REDHAT-BUG-2440905?

To fix REDHAT-BUG-2440905, ensure that CPU resource controls are implemented during TeX rendering.

Who is affected by REDHAT-BUG-2440905?

Users of Moodle with access to the TeX formula editor are affected by REDHAT-BUG-2440905.

What type of attack can REDHAT-BUG-2440905 lead to?

REDHAT-BUG-2440905 can lead to excessive CPU consumption, resulting in degraded performance or service outage.

Is authentication required to exploit REDHAT-BUG-2440905?

Yes, an attacker must be an authenticated user to exploit REDHAT-BUG-2440905.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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REDHAT-BUG-2440905 - SecAlerts