Moodle vulnerable to Uncontrolled Resource Consumption

HIGH 7.5CVE-2021-36395 · BIT-moodle-2021-36395 · GHSA-273w-7fxj-pcp6 · Published 06/03/2023 · updated 17/06/2026

In short

CVE-2021-36395 is a HIGH (CVSS 7.5) vulnerability affecting moodle/moodle, moodle (moodle).
Chance of exploitation in the next 30 days (EPSS): 0.73%, higher than 54.4% of all vulnerabilities.
Fix: update to 3.10.5, 3.11.1, 3.9.8 or later.

Package	Affected versions	Patched versions
moodle/moodle Packagist	`≥ 3.10.0-beta, < 3.10.5≥ 3.11.0-beta, < 3.11.1< 3.9.8`	`3.10.53.11.13.9.8`
moodle moodle	`≥ 3.10.0, < 3.10.5≥ 3.11.0, < 3.11.1< 3.9.8`	`3.10.53.11.13.9.8`

In Moodle, the file repository's URL parsing required additional recursion handling to mitigate the risk of recursion denial of service.

NVD description

In Moodle, the file repository's URL parsing required additional recursion handling to mitigate the risk of recursion denial of service.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Package

Affected versions

Patched versions

Packagist

≥ 3.10.0-beta, < 3.10.5≥ 3.11.0-beta, < 3.11.1< 3.9.8

3.10.53.11.13.9.8

≥ 3.10.0, < 3.10.5≥ 3.11.0, < 3.11.1< 3.9.8

3.10.53.11.13.9.8

More vulnerabilities in moodle/moodle

See all →