DEBIAN-CVE-2026-33551

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-33551
Published: 10 Apr 2026, 03:16
Last modified:15 Jun 2026, 19:06

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Apr 2026, 03:16
Published
Vulnerability first disclosed
15 Jun 2026, 19:06
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Systems

  • debian•keystone

    all | all | all | all | < 2:18.1.0-1+deb11u3 | < 2:22.0.2-0+deb12u2 | < 2:27.0.0-3+deb13u3 | < 2:29.0.0-2

References (1)