Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (openstack-keystone) security update
Affects Red HatSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 3.5 Low : upgrade Red Hat to 26.1.1 when convenient.
Data as of 5 Nov 2026, 23:24 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 26.1.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade Keystone to 26.1.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| OpenStackKeystone | Affected
| Fixed in
|
AI-suggested
Red Hat has released an important security update for openstack-keystone in Red Hat OpenStack Services on OpenShift 18.0. Users should apply the update as described in the Red Hat advisory RHSA-2026:39808 and the referenced article https://access.redhat.com/articles/11258 to remediate these vulnerabilities. No indication is given that no action is required or that the issues are already mitigated; therefore, applying the official update is recommended.
Description
Red Hat OpenStack Services on OpenShift 18.0 (openstack-keystone) contains multiple security vulnerabilities that allow unauthorized access and privilege escalation. These include improper validation in EC2 credential creation leading to unauthorized cross-project access, incorrect LDAP user status handling causing unauthorized access, and privilege escalation through EC2 credential creation. Red Hat has released an important security update addressing these issues.
References
- access.redhat.com/errata/RHSA-2026:39808 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2451037 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2458472 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2464305 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_39808.json (opens in a new tab)