CVE-2021-21238
- Source
- https://cve.org/CVERecord?id=CVE-2021-21238
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-21238.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-21238
- Aliases
- Downstream
DEBIAN (1)
UBUNTU (1)
- Related
- Published
- 2021-01-21T15:15:14Z
- Modified
- 2026-10-22T02:48:08Z
- 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
Git / github.com/identitypython/pysaml2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/identitypython/pysaml2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:pysaml2_project:pysaml2:*:*:*:*:*:*:*:*", "range": [ { "introduced": "0" }, { "fixed": "6.5.0" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "1d8fd268f5bf887480a403a7a5ef8f048157cc14" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v6.5.0", "range": [ { "fixed": "12ec4a70c5aaf4c144f6b30a158193ca99bc76cd" } ], "source": "REFERENCES_TAG" } ] }
Affected versions
0.*
0.4.2
1.*
1.0.0
1.0.1
2.*
2.0.0
2.1.0
2.3.0
2.4.0
3.*
3.0.0
4.*
4.0.0
v1.*
v1.0.3
v2.*
v2.2.0
v3.*
v3.0.2
v4.*
v4.1.0
v4.2.0
v4.3.0
v4.5.0
v4.6.0
v4.6.1
v4.6.2
v4.6.3
v4.6.4
v4.6.5
v4.7.0
v4.8.0
v4.9.0
v5.*
v5.0.0
v5.1.0
v5.2.0
v5.3.0
v5.4.0
v6.*
v6.0.0
v6.1.0
v6.2.0
v6.3.0
v6.3.1
v6.4.0
v6.4.1