Critical severity9.8NVD Advisory· Published Aug 12, 2021· Updated Jun 17, 2026
CVE-2021-31556
CVE-2021-31556
Description
An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. MWOAuthConsumerSubmitControl.php does not ensure that the length of an RSA key will fit in a MySQL blob.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
8- Range: <=1.35.2
- MediaWiki/Oauth extensiondescription
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
5- gerrit.wikimedia.org/r/q/I13ff0350a9a0a3cd5ab3e1f82dd0d8d9c13cf9e9nvdPatchVendor Advisory
- phabricator.wikimedia.org/T277380nvdPermissions RequiredVendor Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/nvd
News mentions
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