5.3

CVE-2026-33551

Exploit
An issue was discovered in OpenStack Keystone 14 through 26 before 26.1.1, 27.0.0, 28.0.0, and 29.0.0. Restricted application credentials can create EC2 credentials. By using a restricted application credential to call the EC2 credential creation API, an authenticated user with only a reader role may obtain an EC2/S3 credential that carries the full set of the parent user's S3 permissions, effectively bypassing the role restrictions imposed on the application credential. Only deployments that use restricted application credentials in combination with the EC2/S3 compatibility API (swift3 / s3api) are affected.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openstack ≫ Keystone Version >= 14.0.0 < 26.1.1
Openstack ≫ Keystone Version27.0.0
Openstack ≫ Keystone Version28.0.0
Openstack ≫ Keystone Version29.0.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.122
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.3 1.6 3.6
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
cve@mitre.org 3.5 1.8 1.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://bugs.launchpad.net/keystone/+bug/2142138
Exploit
Issue Tracking
https://security.openstack.org/ossa/OSSA-2026-005.html
Patch
Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/07/12
Patch
Third Party Advisory
Mailing List