Description
An issue was discovered in OpenStack Keystone before 29.0.3. Tokens obtained via delegated authentication methods (EC2 credentials, application credentials, OAuth1 access tokens, and trusts) are not blocked from creating, modifying, or deleting credentials via the /v3/credentials API. EC2-derived tokens can additionally read credential blobs, exposing TOTP MFA seeds and other secrets. Also, PATCH /v3/credentials does not validate the requested post-update project_id, allowing any delegated token to move a credential to an unauthorized project. All Keystone deployments using delegated authentication are affected.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenStack | Keystone | 13.0.0 – < 27.0.3, 28.0.0 – < 28.0.3, 29.0.0 – < 29.0.3 | 27.0.3 |
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 | 2:30.0.0~rc1-1 | — |
| Debian 13 | keystone | 2:27.0.0-3+deb13u6 | — |
| Debian 12 | keystone | 2:22.0.2-0+deb12u5 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | keystone | No fix yet | — |
| Ubuntu 26.04 LTS | keystone | No fix yet | — |
| Ubuntu 24.04 LTS | keystone | No fix yet | — |
| Ubuntu 22.04 LTS | keystone | No fix yet | — |
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 | — |
References
- https://launchpad.net/bugs/2159643 issue-tracking
- https://launchpad.net/bugs/2158931 issue-tracking
- https://review.opendev.org/1002330