Description
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. Users of pysaml2 that use the default CryptoBackendXmlSec1 backend and need to verify signed SAML documents are impacted. PySAML2 does not ensure that a signed SAML document is correctly signed. The default CryptoBackendXmlSec1 backend is using the xmlsec1 binary to verify the signature of signed SAML documents, but by default xmlsec1 accepts any type of key found within the given document. xmlsec1 needs to be configured explicitly to only use only _x509 certificates_ for the verification process of the SAML document signature. This is fixed in PySAML2 6.5.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IdentityPython | pysaml2 | < 6.5.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | python-pysaml2 | 6.5.1-1 | — |
| Debian 13 | python-pysaml2 | 6.5.1-1 | — |
| Debian 12 | python-pysaml2 | 6.5.1-1 | — |
| Debian 9 | python-pysaml2 | 3.0.0-5+deb9u2 | DLA-2577-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | python-pysaml2 | 6.1.0-0ubuntu2 | — |
| Ubuntu 20.04 LTS | python-pysaml2 | 4.9.0-0ubuntu3.1 | USN-5066-1 |
| Ubuntu 18.04 LTS | python-pysaml2 | 4.0.2-0ubuntu3.2 | USN-5066-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | python-pysaml2 | 3.0.0-3ubuntu1.16.04.4+esm1 | USN-5066-2 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud Crowbar 9 | cassandra | 3.11.10-3.3.3 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | crowbar-openstack | 6.0+git.1616146717.a89ae0f4e-3.34.4 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | grafana | 6.7.4-3.23.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | kibana | 4.6.6-4.9.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | openstack-dashboard | 14.1.1~dev11-3.24.6 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | openstack-ironic | 11.1.5~dev17-3.25.5 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | openstack-neutron | 13.0.8~dev164-3.37.4 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | openstack-neutron-gbp | 12.0.1~dev29-3.25.3 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | openstack-nova | 18.3.1~dev82-3.37.6 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | python-Django1 | 1.11.29-3.25.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | python-elementpath | 1.3.1-1.3.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | python-py | 1.5.4-3.3.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | python-pysaml2 | 4.5.0-4.6.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | python-xmlschema | 1.0.18-1.3.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 9 | rubygem-activerecord-session_store | 0.1.2-4.3.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud Crowbar 8 | cassandra | 3.11.10-5.3.5 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | crowbar-core | 5.0+git.1622489449.a8e60e238-3.50.4 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | crowbar-openstack | 5.0+git.1616001417.67fd9c2a1-4.52.5 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | documentation-suse-openstack-cloud-deployment +3 | 8.20210512-1.32.5 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | grafana | 6.7.4-4.18.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | kibana | 4.6.6-3.9.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | openstack-heat-templates | 0.0.0+git.1623056900.7917e18-3.21.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | openstack-monasca-installer | 20190923_16.32-3.18.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | openstack-nova +1 | 16.1.9~dev92-3.48.5 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | python-Django | 1.11.29-3.25.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | python-elementpath | 1.3.1-1.3.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | python-eventlet | 0.20.0-6.3.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | python-py | 1.4.34-3.3.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | python-pysaml2 | 4.0.2-5.9.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | python-xmlschema | 1.0.18-1.3.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud Crowbar 8 | rubygem-activerecord-session_store | 0.1.2-3.3.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 9 | ardana-neutron | 9.0+git.1615223676.777f0b3-3.25.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | ardana-swift | 9.0+git.1618235096.90974ed-3.10.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | cassandra | 3.11.10-3.3.3 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | grafana | 6.7.4-3.23.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | kibana | 4.6.6-4.9.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | openstack-dashboard | 14.1.1~dev11-3.24.6 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | openstack-ironic | 11.1.5~dev17-3.25.5 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | openstack-neutron | 13.0.8~dev164-3.37.4 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | openstack-neutron-gbp | 12.0.1~dev29-3.25.3 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | openstack-nova | 18.3.1~dev82-3.37.6 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | python-Django1 | 1.11.29-3.25.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | python-elementpath | 1.3.1-1.3.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | python-py | 1.5.4-3.3.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | python-pysaml2 | 4.5.0-4.6.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | python-xmlschema | 1.0.18-1.3.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-barbican | 7.0.1~dev24-3.23.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-cinder | 13.0.10~dev20-3.26.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-designate | 7.0.2~dev2-3.23.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-glance | 17.0.1~dev30-3.21.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-heat | 11.0.4~dev4-3.23.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-horizon | 14.1.1~dev11-4.27.3 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-ironic | 11.1.5~dev17-4.21.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-keystone | 14.2.1~dev4-3.24.3 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-magnum | 7.2.1~dev1-4.23.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-manila | 7.4.2~dev60-3.29.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-monasca | 2.7.1~dev10-3.21.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-monasca-ceilometer | 1.8.2~dev3-3.23.2 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-neutron | 13.0.8~dev164-6.27.3 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-nova | 18.3.1~dev82-3.27.3 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-octavia | 3.2.3~dev7-4.23.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-sahara | 9.0.2~dev15-3.23.1 | SUSE-SU-2021:1962-1 |
| SUSE OpenStack Cloud 9 | venv-openstack-swift | 2.19.2~dev48-2.18.1 | SUSE-SU-2021:1962-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud 8 | ardana-cobbler | 8.0+git.1614096566.e8c2b27-3.44.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | cassandra | 3.11.10-5.3.5 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | documentation-suse-openstack-cloud-user +8 | 8.20210512-1.32.5 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | grafana | 6.7.4-4.18.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | kibana | 4.6.6-3.9.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | openstack-heat-templates | 0.0.0+git.1623056900.7917e18-3.21.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | openstack-monasca-installer | 20190923_16.32-3.18.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | openstack-nova +1 | 16.1.9~dev92-3.48.5 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | python-Django | 1.11.29-3.25.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | python-elementpath | 1.3.1-1.3.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | python-eventlet | 0.20.0-6.3.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | python-py | 1.4.34-3.3.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | python-pysaml2 | 4.0.2-5.9.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | python-xmlschema | 1.0.18-1.3.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-aodh | 5.1.1~dev7-12.32.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-barbican | 5.0.2~dev3-12.33.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-ceilometer | 9.0.8~dev7-12.30.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-cinder | 11.2.3~dev29-14.34.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-designate | 5.0.3~dev7-12.31.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-freezer | 5.0.0.0~xrc2~dev2-10.28.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-glance | 15.0.3~dev3-12.31.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-heat | 9.0.8~dev22-12.33.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-horizon | 12.0.5~dev6-14.36.6 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-ironic | 9.1.8~dev8-12.33.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-keystone | 12.0.4~dev11-11.35.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-magnum | 5.0.2_5.0.2_5.0.2~dev31-11.32.2 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-manila | 5.1.1~dev5-12.37.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-monasca | 2.2.2~dev1-11.28.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-monasca-ceilometer | 1.5.1_1.5.1_1.5.1~dev3-8.28.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-murano | 4.0.2~dev2-12.28.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-neutron | 11.0.9~dev69-13.38.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-nova | 16.1.9~dev92-11.36.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-octavia | 1.0.6~dev3-12.33.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-sahara | 7.0.5~dev4-11.32.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-swift | 2.15.2_2.15.2_2.15.2~dev32-11.23.3 | SUSE-SU-2021:2554-1 |
| SUSE OpenStack Cloud 8 | venv-openstack-trove | 8.0.2~dev2-11.32.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | ardana-cobbler | 8.0+git.1614096566.e8c2b27-3.44.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | cassandra | 3.11.10-5.3.5 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | documentation-hpe-helion-openstack-user +5 | 8.20210512-1.32.5 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | grafana | 6.7.4-4.18.2 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | kibana | 4.6.6-3.9.2 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | openstack-heat-templates | 0.0.0+git.1623056900.7917e18-3.21.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | openstack-monasca-installer | 20190923_16.32-3.18.2 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | openstack-nova +1 | 16.1.9~dev92-3.48.5 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | python-Django | 1.11.29-3.25.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | python-elementpath | 1.3.1-1.3.2 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | python-eventlet | 0.20.0-6.3.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | python-py | 1.4.34-3.3.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | python-pysaml2 | 4.0.2-5.9.2 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | python-xmlschema | 1.0.18-1.3.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-aodh | 5.1.1~dev7-12.32.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-barbican | 5.0.2~dev3-12.33.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-ceilometer | 9.0.8~dev7-12.30.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-cinder | 11.2.3~dev29-14.34.2 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-designate | 5.0.3~dev7-12.31.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-freezer | 5.0.0.0~xrc2~dev2-10.28.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-glance | 15.0.3~dev3-12.31.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-heat | 9.0.8~dev22-12.33.2 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-horizon-hpe | 12.0.5~dev6-14.36.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-ironic | 9.1.8~dev8-12.33.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-keystone | 12.0.4~dev11-11.35.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-magnum | 5.0.2_5.0.2_5.0.2~dev31-11.32.2 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-manila | 5.1.1~dev5-12.37.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-monasca | 2.2.2~dev1-11.28.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-monasca-ceilometer | 1.5.1_1.5.1_1.5.1~dev3-8.28.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-murano | 4.0.2~dev2-12.28.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-neutron | 11.0.9~dev69-13.38.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-nova | 16.1.9~dev92-11.36.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-octavia | 1.0.6~dev3-12.33.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-sahara | 7.0.5~dev4-11.32.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-swift | 2.15.2_2.15.2_2.15.2~dev32-11.23.3 | SUSE-SU-2021:2554-1 |
| SUSE HPE Helion OpenStack 8 | venv-openstack-trove | 8.0.2~dev2-11.32.3 | SUSE-SU-2021:2554-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-pysaml2 | 7.4.2-1.2 | openSUSE-SU-2026:11524-1, openSUSE-SU-2024:14156-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.23 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.22 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.21 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.20 | py3-saml2 | 6.5.0-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.18 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.17 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.16 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.15 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.14 | py3-saml2 | 6.5.0-r0 | — |
| Alpine v3.13 | py3-saml2 | 6.4.1-r1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 4 repositories
-
Crims-on/CVE-2021-21239 ★ 0 · Feb 26, 2026
A script to exploit a vulnerability in xmlsec1 where xmlsec ignores loaded public keys
-
illera88/CVE-2021-21239 ★ 0 · Sep 10, 2025
-
GrantBirki/redash-vulnerable ★ 0 · Aug 3, 2025
A Dockerized Redash instance that is vulnerable to CVE-2021-21239
-
RyanBoomer30/CVE-2021-21239-Exploit ★ 0 · Jul 18, 2024
Report documentation of this script is below
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | pysaml2 | < 6.5.0 | 6.5.0 | GHSA-5p3x-r448-pc62 |
Advisories 7
- openSUSE-SU-2026:11524-1 python313-pysaml2-7.5.4-1.1 on GA media SUSE / openSUSE Security Updates · Aug 16, 2026
- USN-5066-2 python-pysaml2 vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-2577-1 python-pysaml2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-5066-1 python-pysaml2 vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:14156-1 python310-pysaml2-7.4.2-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2554-1 Security update for ardana-cobbler, cassandra, cassandra-kit, crowbar-core, crowbar-openstack, documentation-suse-openstack-cloud, grafana, kibana, openstack-heat-templates, openstack-monasca-installer, openstack-nova, python-Django, python-elementpath, python-eventlet, python-py, python-pysaml2, python-six, python-xmlschema SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1962-1 Security update for ardana-neutron, ardana-swift, cassandra, crowbar-openstack, grafana, kibana, openstack-dashboard, openstack-ironic, openstack-neutron, openstack-neutron-gbp, openstack-nova, python-Django1, python-py, python-pysaml2, python-xmlschema, rubygem-activerecord-session_store, venv-openstack-keystone SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/IdentityPython/pysaml2/security/advisories/GHSA-5p3x-r448-pc62
- https://pypi.org/project/pysaml2
- https://www.aleksey.com/pipermail/xmlsec/2013/009717.html
- https://github.com/IdentityPython/pysaml2/releases/tag/v6.5.0
- https://github.com/IdentityPython/pysaml2/commit/46578df0695269a16f1c94171f1429873f90ed99
- [debian-lts-announce] 20210226 [SECURITY] [DLA 2577-1] python-pysaml2 security update mailing-list