Bug 2440905 (CVE-2026-26047) - CVE-2026-26047 moodle: Moodle: Uncontrolled Resource Consumption in TeX Formula Editor Leading to Denial of Service
Summary: CVE-2026-26047 moodle: Moodle: Uncontrolled Resource Consumption in TeX Formu...
Keywords:
Status: NEW
Alias: CVE-2026-26047
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2440906
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-19 08:59 UTC by OSIDB Bzimport
Modified: 2026-02-19 09:02 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-02-19 08:59:54 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.