CVE-2026-66139

Published Jul 24, 2026 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
OpenStack Zaqar through 22.0.0 allows authentication bypass via an EXTRA-SPEC header when a UUID is known.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Authentication Bypass in OpenStack Zaqar via EXTRA‑SPEC Header
Type Values Removed Values Added
Title Authentication Bypass in OpenStack Zaqar via EXTRA‑SPEC Header
Type Values Removed Values Added
First Time appeared Openstack
Openstack zaqar
Vendors & Products Openstack
Openstack zaqar
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description OpenStack Zaqar through 22.0.0 allows authentication bypass via an EXTRA-SPEC header when a UUID is known.
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 24, 2026, 11:22 PM
Reserved
Jul 24, 2026, 4:14 AM
Status
Deferred
Published
Jul 24, 2026, 5:16 AM
Modified
Oct 24, 2026, 1:10 PM