USN-7926-1: OpenStack Keystone vulnerabilities
Publication date
11 December 2025
Overview
Several security issues were fixed in OpenStack Keystone.
Releases
Packages
- keystone - OpenStack identity service
Details
Kay discovered that OpenStack Keystone incorrectly handled the ec2tokens
and s3tokens APIs. A remote attacker could possibly use this issue to
obtain unauthorized access and escalate privileges. (CVE-2025-65073)
It was discovered that OpenStack Keystone only validated the first 72
bytes of an application secret. An attacker could possibly use this issue
to bypass password complexity. (CVE-2021-3563)
It was discovered that OpenStack Keystone had a time lag before a token
should be revoked by the security policy. A remote administrator could use
this issue to maintain access for longer than expected. (CVE-2022-2447)
Kay discovered that OpenStack Keystone incorrectly handled the ec2tokens
and s3tokens APIs. A remote attacker could possibly use this issue to
obtain unauthorized access and escalate privileges. (CVE-2025-65073)
It was discovered that OpenStack Keystone only validated the first 72
bytes of an application secret. An attacker could possibly use this issue
to bypass password complexity. (CVE-2021-3563)
It was discovered that OpenStack Keystone had a time lag before a token
should be revoked by the security policy. A remote administrator could use
this issue to maintain access for longer than expected. (CVE-2022-2447)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 22.04 LTS jammy | keystone – 2:21.0.1-0ubuntu2.1 | ||
| python3-keystone – 2:21.0.1-0ubuntu2.1 | |||
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