GHSA-2x32-jm95-2cpx

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    GHSA-2x32-jm95-2cpx

    Published: 20 Dec 2021Last Modified: 10 Sept 2026
    Aliases:
    GO-2020-0050

    Summary: Authentication Bypass in dex

    Details: A vulnerability exists in the SAML connector of the github.com/dexidp/dex library used to process SAML Signature Validation. This flaw allows an attacker to bypass SAML authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. This flaw affects dex versions before 2.27.0.

    References: https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5, https://nvd.nist.gov/vuln/detail/CVE-2020-27847, https://bugzilla.redhat.com/show_bug.cgi?id=1907732, https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities

    Affected packages

    Package

    Name: github.com/dexidp/dex

    Purl: pkg:golang/github.com/dexidp/dex

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.27.0

    Affected versions

    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
    GHSA-2x32-jm95-2cpx | CVE-DB