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Case File

CVE-2021-31556

CRITICAL · CVSS 9.8 EPSS 1.62%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-12 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2021-31556
Severity
CRITICAL
CVSS
9.8
EPSS
1.62%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)