Vulnerability Report

CVE-2026-26047

Title: DoS in Moodle TeX formula editor

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2026-26047.

CWE Category CWE-400

Published Date Feb 21, 2026

Modified Date Feb 26, 2026

Exploit Status Not Found

Score 6.5 CVSS v3.1

Exploit Probability (EPSS)

0.44%

Vulnerability Summary

CVE-2026-26047: 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.

Impacted Vendors

moodle 1

Reference Links

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

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

6.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-26047 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

February 26, 2026 MODIFIED

Vulnerability data updated via NVD.

February 26, 2026 MODIFIED

Vulnerability data updated via NVD.

February 23, 2026 MODIFIED

Vulnerability data updated via NVD.

February 21, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.