Detections
Analytics

SCA: security update for pysaml2 (GHSA-f4g9-h89h-jgv9)

medium Tenable Self-Hosted Container Security Plugin ID 414254

Description

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

 - PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper
 verification of cryptographic signature vulnerability. All users of pysaml2 that need to validate signed
 SAML documents are impacted. The vulnerability is a variant of XML Signature wrapping because it did not
 validate the SAML document against an XML schema. This allowed invalid XML documents to be processed and
 such a document can trick pysaml2 with a wrapped signature. This is fixed in PySAML2 6.5.0.
 (CVE-2021-21238)

See Also

https://github.com/advisories/GHSA-f4g9-h89h-jgv9

Plugin Details

Severity: Medium

ID: 414254

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2021-21238

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/21/2021

Vulnerability Publication Date: 1/21/2021

Reference Information

CVE: CVE-2021-21238

cwe: CWE-347