keystone: An issue was discovered in OpenStack Keystone before 29.0.2
CVE-2026-44394 is fixed in 3 products on 1 platform, first by keystone 2:29.0.0-0ubuntu1.2, released May 28, 2026. It is not reported as exploited. Patch Radar priority: High.
An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone federated token rescoping mechanism does not propagate the original token's expiry to the newly issued token. When a federated user rescopes a token via POST /v3/auth/tokens, the handle_scoped_token() function in the mapped authentication plugin returns response data without an expires_at value. The token provider falls back to issuing a token with a fresh default TTL. By rescoping repeatedly before each token expires, a user can maintain access indefinitely, bypassing operator-configured token lifetime policies. This is a variant of CVE-2012-3426. Only deployments using federated identity (SAML2, OpenID Connect) are affected.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| keystone · Debian 12.15 (bookworm) | 2:22.0.2-0+deb12u3 | DEBIAN-CVE-2026-44394 | Jun 24, 2026 |
| keystone · Debian 13.5 (trixie) | 2:27.0.0-3+deb13u4 | DEBIAN-CVE-2026-44394 | Jun 24, 2026 |
| keystone · Debian 14 | 2:29.0.1-2 | DEBIAN-CVE-2026-44394 | Jun 24, 2026 |
| keystone · Ubuntu 22.04.1 LTS (jammy) | 2:21.0.1-0ubuntu2.4 | keystone 2:21.0.1-0ubuntu2.4 | Jun 24, 2026 |
| keystone · Ubuntu 24.04.5 LTS (noble) | 2:25.0.0-0ubuntu1.4 | keystone 2:25.0.0-0ubuntu1.4 | Jun 24, 2026 |
| keystone · Ubuntu 25.10 (questing) | 2:28.0.0-0ubuntu1.3 | keystone 2:28.0.0-0ubuntu1.3 | Jun 24, 2026 |
| keystone · Ubuntu 26.04.1 LTS (resolute) | 2:29.0.0-0ubuntu1.2 | keystone 2:29.0.0-0ubuntu1.2 | May 28, 2026 |
| keystone-common · Ubuntu 22.04.1 LTS (jammy) | 2:21.0.1-0ubuntu2.4 | keystone-common 2:21.0.1-0ubuntu2.4 | Jun 24, 2026 |
| keystone-common · Ubuntu 24.04.5 LTS (noble) | 2:25.0.0-0ubuntu1.4 | keystone-common 2:25.0.0-0ubuntu1.4 | Jun 24, 2026 |
| keystone-common · Ubuntu 25.10 (questing) | 2:28.0.0-0ubuntu1.3 | keystone-common 2:28.0.0-0ubuntu1.3 | Jun 24, 2026 |
| keystone-common · Ubuntu 26.04.1 LTS (resolute) | 2:29.0.0-0ubuntu1.2 | keystone-common 2:29.0.0-0ubuntu1.2 | May 28, 2026 |
| python3-keystone · Ubuntu 22.04.1 LTS (jammy) | 2:21.0.1-0ubuntu2.4 | python3-keystone 2:21.0.1-0ubuntu2.4 | Jun 24, 2026 |
| python3-keystone · Ubuntu 24.04.5 LTS (noble) | 2:25.0.0-0ubuntu1.4 | python3-keystone 2:25.0.0-0ubuntu1.4 | Jun 24, 2026 |
| python3-keystone · Ubuntu 25.10 (questing) | 2:28.0.0-0ubuntu1.3 | python3-keystone 2:28.0.0-0ubuntu1.3 | Jun 24, 2026 |
| python3-keystone · Ubuntu 26.04.1 LTS (resolute) | 2:29.0.0-0ubuntu1.2 | python3-keystone 2:29.0.0-0ubuntu1.2 | May 28, 2026 |
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