VIR Vulnerability Intelligence Relay

CVE-2026-42999

high
Published 2026-05-28 · Modified 2026-06-02
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
8.8

Description

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).

Predictions

Exploit likelihood
92%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
debian Debian Mixed 5 releases
VersionStatusFixed in
trixie Affected —
sid Fixed 2:29.0.1-2
forky Fixed 2:29.0.1-2
bullseye Fixed 2:18.1.0-1+deb11u3
bookworm Affected —

Application impact
VendorProductVersionsFixed
openstackkeystone{"startIncluding":"14.0.0","endExcluding":"27.0.2"}27.0.2
openstackkeystone{"startIncluding":"28.0.0","endExcluding":"28.0.2"}28.0.2
openstackkeystone{"startIncluding":"29.0.0","endExcluding":"29.0.2"}29.0.2

References

CWEs

CWE-863

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.