Incorrect authorization in keystone
Priority LOW 36CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-863.
Summary
A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.
Why it matters now
EPSS 0.01863 79th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | keystone | Not-known | — | No fix listed | CNA |
| — | keystone (PyPI) | up to 21.0.0 | — | No fix listed | GHSA-cc99-whm5-mmq3 |
- keystone Vendor— Affected Not-known Fixed in — No fix listed CNA
- keystone (PyPI) Vendor— Affected up to 21.0.0 Fixed in — No fix listed GHSA-cc99-whm5-mmq3
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:* | all versions | Vulnerable | OpenStack |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
| cpe:2.3:a:redhat:openstack_platform:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:* | 13.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack_platform:16.1:*:*:*:*:*:*:* | 16.1 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack_platform:16.2:*:*:*:*:*:*:* | 16.2 | Vulnerable | Red Hat |
- cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·OpenStack
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
- cpe:2.3:a:redhat:openstack_platform:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:* Versions 13.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack_platform:16.1:*:*:*:*:*:*:* Versions 16.1 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack_platform:16.2:*:*:*:*:*:*:* Versions 16.2 Vulnerable ·Red Hat
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenStack Platform 10 (Newton) | Affected | No fix planned: Out of support scope |
| Red Hat OpenStack Platform 13 (Queens) | Affected | No fix planned: Out of support scope |
| Red Hat OpenStack Platform 16.1 | Affected | No fix yet |
| Red Hat OpenStack Platform 16.2 | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 17.0 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3563
- 2026-10-03 Alias added: GHSA-cc99-whm5-mmq3
References
Exploit 3
Advisory 2
Other 8
- https://lists.debian.org/debian-lts-announce/2024/01/msg00007.html
- https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2026-370.yaml
- https://opendev.org/openstack/keystone
- https://opendev.org/openstack/keystone/commit/7859ed26003858ebfd9a5e866b43f1a6a9e83dca
- https://pypi.org/project/keystone
- https://review.opendev.org/c/openstack/keystone/+/803641
- https://review.opendev.org/c/openstack/keystone/+/828595
- https://review.opendev.org/c/openstack/keystone/+/856489
Sources
- CVE-2021-3563 · CVE Program
- CVE-2021-3563 · NVD
- FIRST EPSS
- GHSA-cc99-whm5-mmq3 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-3563 · 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