High severity7.5NVD Advisory· Published Apr 22, 2021· Updated Jun 17, 2026
CVE-2021-31555
CVE-2021-31555
Description
An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4- MediaWiki/Oauth extensiondescription
Patches
Vulnerability mechanics
References
2- gerrit.wikimedia.org/r/q/I222c053b4b14ac1ad0f5b3a51565b1b9cd4c139dnvdIssue TrackingVendor Advisory
- phabricator.wikimedia.org/T277388nvdThird Party Advisory
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