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CVE-2026-42999PYSEC-2026-600GHSA-2R23-2G6V-2M5F

An issue was discovered in OpenStack Keystone before 29.0.2.

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 27.0.2, 28.0.2, 29.0.2
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone RBAC policy enforcer in enforce_call unconditionally merges the raw JSON request body into the policy enforcement dictionary via policy_dict.update(json_input.copy()), overwriting trusted target data that was previously set from database lookups. Because flask.request.get_json is called with force=True, this works regardless of Content-Type or HTTP method. Any authenticated user can inject arbitrary policy target attributes (e.g., user_id, project_id) into the request body to bypass RBAC checks and perform unauthorized operations on resources belonging to other users or projects. This was introduced in commit 5ea59f52 (Rocky/14.0.0).

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • OpenStack Keystone

    From 14.0.0 · fixed in 27.0.2; From 28.0.0 · fixed in 28.0.2; From 29.0.0 · fixed in 29.0.2

  • keystonePyPI

    From 14.0.0 · fixed in 27.0.2; From 28.0.0 · fixed in 28.0.2; From 29.0.0 · fixed in 29.0.2

  • keystonePyPI

    From 14.0.0 · fixed in 27.0.2

  • keystonePyPI

    From 28.0.0 · fixed in 28.0.2

  • keystonePyPI

    From 29.0.0 · fixed in 29.0.2

References 2

bugs.launchpad.net

security.openstack.org