CVE-2026-33551
Fixed in a distro release EPSS <1%CVSS 3.5
An issue was discovered in OpenStack Keystone 14 through 26 before 26.1.1, 27.0.0, 28.0.0, and 29.0.0. Restricted application credentials can create EC2 credentials. By using a restricted application credential to call the EC2 credential creation API, an authenticated user with only a reader role may obtain an EC2/S3 credential that carries the full set of the parent user's S3 permissions, effectively bypassing the role restrictions imposed on the application credential. Only deployments that use restricted application credentials in combination with the EC2/S3 compatibility API (swift3 / s3api) are affected.
Products: OpenStack Keystone
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | keystone | 26.1.1 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | keystone | 2:22.0.2-0+deb12u2 |
| Debian 13 | keystone | 2:27.0.0-3+deb13u3 |
| Debian 14 | keystone | 2:29.0.0-2 |
| Red Hat openstack 16.2 | collectd-sensubility | 0:0.2.1-1.1.el8ost |
| Red Hat openstack 16.2 | collectd-sensubility-debuginfo | 0:0.2.1-1.1.el8ost |
| Red Hat openstack 16.2 | erlang | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-asn1 | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-asn1-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-compiler | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-crypto | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-crypto-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-debugsource | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-eldap | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-erl_interface-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-erts | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-erts-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-hipe | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-inets | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-kernel | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-mnesia | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-odbc-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-os_mon | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-os_mon-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-parsetools | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-public_key | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-runtime_tools | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-runtime_tools-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-sasl | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-snmp | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-ssl | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-stdlib | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-syntax_tools | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-tools | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-tools-debuginfo | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | erlang-xmerl | 0:23.3.4.18-2.el8ost |
| Red Hat openstack 16.2 | etcd | 0:3.3.23-22.el8ost |
| Red Hat openstack 16.2 | etcd-debuginfo | 0:3.3.23-22.el8ost |
| Red Hat openstack 16.2 | etcd-debugsource | 0:3.3.23-22.el8ost |
| Red Hat openstack 16.2 | openstack-glance | 1:19.0.5-2.20260512165254.eb6ad61.el8ost |
| Red Hat openstack 16.2 | openstack-keystone | 1:16.0.3-2.20260616134936.9d699a7.el8ost |
| Red Hat openstack 16.2 | openstack-nova | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-api | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-common | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-compute | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-conductor | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-console | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-migration | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-novncproxy | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-scheduler | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-serialproxy | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | openstack-nova-spicehtml5proxy | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | python-oslo-messaging | 0:10.2.4-2.20260710155333.82281a0.el8ost |
| Red Hat openstack 16.2 | python-pyasn1 | 0:0.4.6-4.el8ost |
| Red Hat openstack 16.2 | python3-glance | 1:19.0.5-2.20260512165254.eb6ad61.el8ost |
| Red Hat openstack 16.2 | python3-keystone | 1:16.0.3-2.20260616134936.9d699a7.el8ost |
| Red Hat openstack 16.2 | python3-nova | 1:20.6.2-2.20260317135026.8a24acd.el8ost |
| Red Hat openstack 16.2 | python3-oslo-messaging | 0:10.2.4-2.20260710155333.82281a0.el8ost |
| Red Hat openstack 16.2 | python3-pyasn1 | 0:0.4.6-4.el8ost |
| Red Hat openstack 16.2 | python3-pyasn1-modules | 0:0.4.6-4.el8ost |
| Red Hat openstack 17.1 | openstack-keystone | 1:19.0.2-17.1.20260529190847.54dd95d.el9ost |
| Red Hat openstack 17.1 | openstack-swift | 0:2.27.1-17.1.20231004180819.el9ost |
| Red Hat openstack 17.1 | openstack-swift-account | 0:2.27.1-17.1.20231004180819.el9ost |
| Red Hat openstack 17.1 | openstack-swift-container | 0:2.27.1-17.1.20231004180819.el9ost |
| Red Hat openstack 17.1 | openstack-swift-object | 0:2.27.1-17.1.20231004180819.el9ost |
| Red Hat openstack 17.1 | openstack-swift-proxy | 0:2.27.1-17.1.20231004180819.el9ost |
| Red Hat openstack 17.1 | openstack-tempest | 1:33.0.0-17.1.20260406141650.1580f6f.el9ost |
| Red Hat openstack 17.1 | openstack-tempest-all | 1:33.0.0-17.1.20260406141650.1580f6f.el9ost |
| Red Hat openstack 17.1 | python3-keystone | 1:19.0.2-17.1.20260529190847.54dd95d.el9ost |
| Red Hat openstack 17.1 | python3-swift | 0:2.27.1-17.1.20231004180819.el9ost |
| Red Hat openstack 17.1 | python3-tempest | 1:33.0.0-17.1.20260406141650.1580f6f.el9ost |
| Red Hat openstack 17.1 | python3-tempest-tests | 1:33.0.0-17.1.20260406141650.1580f6f.el9ost |
| Red Hat openstack 18.0 | openstack-keystone | 1:23.0.3-18.0.20260610133808.9e3dfb4.el9ost |
| Red Hat openstack 18.0 | python3-keystone | 1:23.0.3-18.0.20260610133808.9e3dfb4.el9ost |
| Ubuntu 22.04 LTS | keystone | 2:21.0.1-0ubuntu2.4 |
| Ubuntu 24.04 LTS | keystone | 2:25.0.0-0ubuntu1.4 |
| Ubuntu 25.10 | keystone | 2:28.0.0-0ubuntu1.3 |
| Ubuntu 26.04 LTS | keystone | 2:29.0.0-0ubuntu1.2 |
| Ubuntu Pro 16.04 LTS | keystone | no fix |
| Ubuntu Pro 18.04 LTS | keystone | no fix |
| Ubuntu Pro 20.04 LTS | keystone | no fix |