CVE-2021-46149
First published: Fri Jan 07 2022(Updated: )
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A denial of service (resource consumption) can be accomplished by searching for a very long key in a Language Name Search.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wikimedia MediaWiki | <1.35.5 | |
| Wikimedia MediaWiki | >=1.36.0<1.36.3 | |
| Wikimedia MediaWiki | >=1.37.0<1.37.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-46149?
CVE-2021-46149 is categorized as a denial of service vulnerability.
How do I fix CVE-2021-46149?
To mitigate CVE-2021-46149, upgrade MediaWiki to version 1.35.5, 1.36.3, or 1.37.1 or later.
What versions of MediaWiki are affected by CVE-2021-46149?
CVE-2021-46149 affects MediaWiki versions prior to 1.35.5, between 1.36.0 and 1.36.3, and between 1.37.0 and 1.37.1.
What type of attack does CVE-2021-46149 enable?
CVE-2021-46149 enables a denial of service attack through resource consumption by searching for excessively long keys.
How can I verify if I am vulnerable to CVE-2021-46149?
You can verify vulnerability to CVE-2021-46149 by checking your MediaWiki version against the specified affected versions.
- agent/references
- agent/type
- agent/weakness
- agent/severity
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/first-publish-date
- agent/last-modified-date
- agent/author
- agent/softwarecombine
- agent/event
- agent/source
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/mediawiki
- canonical/wikimedia mediawiki
- version/wikimedia mediawiki/1.36.0
- version/wikimedia mediawiki/1.37.0