Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenStack | Keystone | 14.0.0 – < 27.0.2, 28.0.0 – < 28.0.2, 29.0.0 – < 29.0.2 | 27.0.2 |
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 | keystone | 2:29.0.1-2 | — |
| Debian 13 | keystone | 2:27.0.0-3+deb13u4 | — |
| Debian 12 | keystone | 2:22.0.2-0+deb12u3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | keystone | 2:29.0.0-0ubuntu1.2 | — |
| Ubuntu 25.10 | keystone | 2:28.0.0-0ubuntu1.3 | — |
| Ubuntu 24.04 LTS | keystone | 2:25.0.0-0ubuntu1.4 | — |
| Ubuntu 22.04 LTS | keystone | 2:21.0.1-0ubuntu2.4 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | keystone | No fix yet | — |
| Ubuntu Pro 18.04 LTS | keystone | No fix yet | — |
| Ubuntu Pro 16.04 LTS | keystone | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 18 | python3-keystone +1 | 1:23.0.3-18.0.20260610133808.9e3dfb4.el9ost | RHSA-2026:39808 |
| Red Hat OpenStack 17 | python3-keystone +1 | 1:19.0.2-17.1.20260529190847.54dd95d.el9ost | RHSA-2026:28044 |
| Red Hat OpenStack 17 | python3-swift +5 | 2.27.1-17.1.20231004180819.el9ost | RHSA-2026:28044 |
| Red Hat OpenStack 17 | python3-tempest +3 | 1:33.0.0-17.1.20260406141650.1580f6f.el9ost | RHSA-2026:28044 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | keystone | >= 13.0.0, <= 29.0.1 | — | GHSA-hhq2-3832-xxcv |
| PyPI | keystone | >= 14.0.0, < 27.0.2 · >= 28.0.0, < 28.0.2 · >= 29.0.0, < 29.0.2 | 27.0.2, 28.0.2, 29.0.2 | PYSEC-2026-602 |
Advisories 2
- RHSA-2026:39808 Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (openstack-keystone) security update Red Hat Security Advisories (RHSA) · Sep 26, 2026
- RHSA-2026:28044 Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 (openstack-keystone) security update Red Hat Security Advisories (RHSA) · Sep 26, 2026