CVE-2022-28203 Denial of service in n/a

What is CVE-2022-28203?

CVE-2022-28203 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 19 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A denial-of-service issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2. When many files exist, requesting Special:NewFiles with actor as a condition can result in a very long running query.

Weakness: CWE-763

Which versions are affected by CVE-2022-28203?

1 open source package ship an affected version, including mediawiki. It affects 2 products.

Products include Debian Debian Linux, Mediawiki Mediawiki.

How do I fix CVE-2022-28203?

Upgrade mediawiki to a fixed version for your release line: 1.35.6, 1.36.4 or 1.37.2.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-28203 being exploited?

There is no known exploitation of CVE-2022-28203 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-mediawiki-2022-28203, DEBIAN-CVE-2022-28203, GHSA-647g-vgr2-5gqc, UBUNTU-CVE-2022-28203.