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CVE-2026-33551VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (openstack-keystone) security update

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-33551· Low 3.5

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

CVSS 3.1 base score
3.5Low
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
OpenStackKeystoneAffected
  • >=14.0.0 <26.1.1
  • =27.0.0
  • =28.0.0
  • =29.0.0
Fixed in
  • 26.1.1

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

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