CVE-2021-31555

    Dashboard / Vulnerabilities / CVE-2021-31555

    CVE-2021-31555

    Published: 22 Apr 2021Last Modified: 9 Jul 2026

    Summary:

    Details: 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.

    References: https://phabricator.wikimedia.org/T277388, https://gerrit.wikimedia.org/r/q/I222c053b4b14ac1ad0f5b3a51565b1b9cd4c139d

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.35.2
    1.35.1
    1.35.0
    1.35.0-rc.3
    1.35.0-rc.2
    1.35.0-rc.1
    1.35.0-rc.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-31555 | CVE-DB