CVE-2026-43001
Fixed in a distro release EPSS <1%CVSS 7.9
An issue was discovered in OpenStack Keystone before 29.0.2. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner's role footprint.
Products: OpenStack Keystone, Red Hat OpenStack Services on OpenShift 18.0, Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1, Red Hat OpenStack Platform 18.0
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | keystone | no fix |
| PyPI | keystone | 27.0.2 |
| PyPI | keystone | 28.0.2 |
| PyPI | keystone | 29.0.2 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | openstack-keystone-2025.1 | 27.0.1-r0 |
| Chainguard | openstack-keystone-2025.1-fips | 27.0.1_git20260601-r3 |
| Chainguard | openstack-keystone-2025.2 | 28.0.1-r0 |
| Chainguard | openstack-keystone-2025.2-fips | 28.0.1_git20260610-r1 |
| Chainguard | openstack-keystone-2025.2-fips | 28.0.1_git20260603-r0 |
| Chainguard | openstack-keystone-2025.2-fips | 28.0.1_git20260610-r0 |
| Chainguard | openstack-keystone-2025.2-fips | 28.0.1_git20260608-r1 |
| Chainguard | openstack-keystone-2026.1 | 29.0.1-r0 |
| Debian 12 | keystone | 2:22.0.2-0+deb12u3 |
| Debian 13 | keystone | 2:27.0.0-3+deb13u4 |
| Debian 14 | keystone | 2:29.0.1-2 |
| 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 |