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SCA: security update for github.com/dexidp/dex, github.com/russellhaering/goxmldsig (GHSA-m9hp-7r99-94h5)

critical Tenable Cloud Security Plugin ID 433503

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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). (CVE-2020-26290)

See Also

https://github.com/advisories/GHSA-m9hp-7r99-94h5

Plugin Details

Severity: Critical

ID: 433503

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 95.11

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-26290

CVSS v3

Risk Factor: Critical

Base Score: 9.6

Temporal Score: 8.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/20/2021

Vulnerability Publication Date: 12/28/2020

Reference Information

CVE: CVE-2020-26290

cwe: CWE-347