Improper Input Validation Affecting openstack-keystone-2025.1 package, versions <27.0.1_git20260618-r5


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.27% (19th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-OPENSTACKKEYSTONE20251-17683143
  • published30 Jun 2026
  • disclosed22 Jun 2026

Introduced: 22 Jun 2026

CVE-2026-54911  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Chainguard openstack-keystone-2025.1 to version 27.0.1_git20260618-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openstack-keystone-2025.1 package and not the openstack-keystone-2025.1 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Prior to 5.13.0, ujson.dumps() (or ujson.dump() or ujson.encode()) have a reject_bytes=False option. When set, they may accept malformed or truncated UTF-8 byte sequences, silently rewriting them into different Unicode characters instead of rejecting them. This leads to input validation bypass and data integrity issues. This vulnerability is fixed in 5.13.0.

CVSS Base Scores

version 3.1