Resource exhaustion in Moodle - CVE-2026-26047
Published: March 26, 2026
Vulnerability identifier: #VU124638
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-26047
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in TeX formula editor. A remote user can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
Moodle
How to mitigate CVE-2026-26047
Install updates from vendor's website.
Moodle - addressed in versions 4.5.9, 5.0.5, 5.1.2