CVE-2026-26047
MEDIUMMoodle 4.5.0-4.5.8 and 5.1.0-beta-5.1.1 - Authenticated Denial of Service via TeX Formula Rendering
Title source: llmDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-26047
Issue Tracking issue-tracking
x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2440905
Scores
CVSS v3
6.5
EPSS
0.0043
EPSS Percentile
34.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
CWE-770
Status
published
Products (2)
moodle/moodle
< 4.5.9
moodle/moodle
5.1.0-beta - 5.1.2Packagist
Published
Feb 21, 2026
Tracked Since
Feb 21, 2026