Technology · PyPI
pysaml2 (PyPI) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 7 vulnerabilities in pysaml2 (PyPI): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2021-21238, was published on 21 January 2021.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About pysaml2 (PyPI)
Python library implementing SAML 2.0 for Single Sign-On and federated identity management.
Latest pysaml2 (PyPI) vulnerabilities
- CVE-2021-21238: PYSEC-2021-48 - PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper…lowCVSS 3.1EPSS 1.1%
- CVE-2021-21239: PYSEC-2021-49 - PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper…lowCVSS 3.1EPSS 1.3%
- CVE-2020-5390: PYSEC-2020-94 - PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature…lowCVSS 3.1EPSS 1.2%
- CVE-2017-1000433: PYSEC-2018-48 - pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This…lowCVSS 3.1EPSS 2.5%
- CVE-2017-1000246: PYSEC-2017-26 - Python package pysaml2 version 4.4.0 and earlier reuses the initialization vector across encryptions in…lowCVSS 3EPSS 0.9%
- CVE-2016-10149: PYSEC-2017-25 - XML External Entity (XXE) vulnerability in PySAML2 4.4.0 and earlier allows remote attackers to read…lowCVSS 3EPSS 5.0%
- CVE-2016-10127: PYSEC-2017-67 - PySAML2 allows remote attackers to conduct XML external entity (XXE) attacks via a crafted SAML XML…lowCVSS 3EPSS 2.1%
Most severe pysaml2 (PyPI) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2017-1000433: PYSEC-2018-48 - pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This…lowCVSS 3.1EPSS 2.5%
- CVE-2021-21239: PYSEC-2021-49 - PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper…lowCVSS 3.1EPSS 1.3%
- CVE-2020-5390: PYSEC-2020-94 - PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature…lowCVSS 3.1EPSS 1.2%
- CVE-2021-21238: PYSEC-2021-48 - PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper…lowCVSS 3.1EPSS 1.1%
- CVE-2016-10149: PYSEC-2017-25 - XML External Entity (XXE) vulnerability in PySAML2 4.4.0 and earlier allows remote attackers to read…lowCVSS 3EPSS 5.0%
- CVE-2016-10127: PYSEC-2017-67 - PySAML2 allows remote attackers to conduct XML external entity (XXE) attacks via a crafted SAML XML…lowCVSS 3EPSS 2.1%
- CVE-2017-1000246: PYSEC-2017-26 - Python package pysaml2 version 4.4.0 and earlier reuses the initialization vector across encryptions in…lowCVSS 3EPSS 0.9%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/pypi-pysaml2.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "pysaml2 (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/pypi-pysaml2, 28 September 2026.