CVE-2026-26047

MEDIUM EPSS 34.8%
Published Feb 21, 20264mo ago · Modified Feb 26, 20264mo ago
6.5 CVSS 3.1
Medium
Find Similar
Published Feb 21, 2026 4mo ago
Last Modified Feb 26, 2026 4mo ago

Description

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.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
34.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-400 Uncontrolled Resource Consumption Resource Mgmt
CWE-770

Affected Products 3

VendorProductVersionRange
moodlemoodle* <4.5.9
moodlemoodle*≥5.0.0  –  <5.0.5
moodlemoodle*≥5.1.0  –  <5.1.2

References 2

  • access.redhat.com https://access.redhat.com/security/cve/CVE-2026-26047
    Third Party Advisory
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2440905
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.