The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka)…
Priority LOW 23CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-284.
Summary
The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token.
Why it matters now
EPSS 0.01402 72nd percentileScored 2026-11-07
Fix Fixed keystone (PyPI): 9.0.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | keystone (PyPI) | 9.0.0 to before 9.0.1 | 9.0.1 | Patch available | GHSA-f82m-w3p3-cgp3 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- keystone (PyPI) Vendor— Affected 9.0.0 to before 9.0.1 Fixed in 9.0.1 Patch available GHSA-f82m-w3p3-cgp3
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc1:*:*:*:*:*:* | 9.0.0.0 rc1 | Vulnerable | keystone |
| cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc2:*:*:*:*:*:* | 9.0.0.0 rc2 | Vulnerable | keystone |
| cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc3:*:*:*:*:*:* | 9.0.0.0 rc3 | Vulnerable | keystone |
- cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc1:*:*:*:*:*:* Versions 9.0.0.0 rc1 Vulnerable ·keystone
- cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc2:*:*:*:*:*:* Versions 9.0.0.0 rc2 Vulnerable ·keystone
- cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc3:*:*:*:*:*:* Versions 9.0.0.0 rc3 Vulnerable ·keystone
Remediation
- Fix · GHSA-f82m-w3p3-cgp3 keystone (PyPI) Fixed in 9.0.1 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
- Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
- Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
- Red Hat JBoss Fuse 6
- Red Hat OpenShift Enterprise 2
- Red Hat OpenStack Platform 8 (Liberty)
- Red Hat OpenStack Platform 9 (Mitaka)
Timeline
- 2026-10-02 Threatist record created from CVE-2016-4911
- 2026-10-03 Alias added: GHSA-f82m-w3p3-cgp3
References
Advisory 3
Other 7
- [oss-security] 20160517 CVE request for vulnerability in OpenStack Keystone
- [oss-security] 20160517 Re: CVE request for vulnerability in OpenStack Keystone
- https://github.com/openstack/keystone/commit/0d376025bae61bf5ee19d992c7f336b99ac69240
- https://github.com/openstack/keystone/commit/ee1dc941042d1f71699971c5c30566af1b348572
- https://github.com/openstack/keystone
- https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2016-38.yaml
- https://review.openstack.org/#/c/311886
Sources
- CVE-2016-4911 · CVE Program
- CVE-2016-4911 · NVD
- FIRST EPSS
- GHSA-f82m-w3p3-cgp3 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-4911 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences