ALPINE-CVE-2021-21238

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Source
https://security.alpinelinux.org/vuln/CVE-2021-21238
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2021-21238
Upstream
Published
2021-01-21T15:15:14Z
Modified
2026-11-03T06:32:38Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Alpine:v3.14
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.15
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.16
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.17
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.18
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.19
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.20
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.21
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.22
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.23
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"
Alpine:v3.24
py3-saml2

Package

Name
py3-saml2
Purl
pkg:apk/alpine/py3-saml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.5.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-21238.json"