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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-26290 Detail

Description

Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 CVE, GitHub, Inc. Patch  Third Party Advisory 
https://github.com/dexidp/dex/releases/tag/v2.27.0 CVE, GitHub, Inc. Third Party Advisory 
https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 CVE, GitHub, Inc. Third Party Advisory 
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md CVE, GitHub, Inc. Not Applicable  Third Party Advisory 
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md CVE, GitHub, Inc. Not Applicable  Third Party Advisory 
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md CVE, GitHub, Inc. Not Applicable  Third Party Advisory 
https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 CVE, GitHub, Inc. Not Applicable  Third Party Advisory 
https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ CVE, GitHub, Inc. Not Applicable  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-347 Improper Verification of Cryptographic Signature GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-26290
NVD Published Date:
12/28/2020
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.