Name: CVE-2021-36773: Uncontrolled Recursion
Creator: Rapid7
Published: 2021-07-18T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-36773, CWE-674, CVSS 7.5, EPSS 0.01261

uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality).

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Jul 18, 2021
Debian	—	Upgrade ublock-origin	Jul 4, 2022	Jul 18, 2021

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CVSS Details

Covered by Rapid7

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