CVE-2026-66139 - Vulnerability Details - OpenCVE

OpenStack Zaqar through 22.0.0 allows authentication bypass via an EXTRA-SPEC header when a UUID is known.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Openstack	Zaqar

No data.

No data.

References

Link	Providers
https://bugs.launchpad.net/ossa/+bug/2161254
https://www.openwall.com/lists/oss-security/2026/07/23/7

History

Thu, 30 Jul 2026 06:00:00 +0000

Type	Values Removed	Values Added
Title		Authentication Bypass in OpenStack Zaqar via EXTRA‑SPEC Header

Tue, 28 Jul 2026 21:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Openstack Openstack zaqar
Vendors & Products		Openstack Openstack zaqar

Fri, 24 Jul 2026 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 24 Jul 2026 04:45:00 +0000

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		https://bugs.launchpad.net/ossa/+bug/2161254 https://www.openwall.com/lists/oss-security/2026/07/23/7
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'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-07-24T04:14:41.795Z

Updated: 2026-07-24T23:22:06.300Z

Reserved: 2026-07-24T04:14:41.411Z

Link: CVE-2026-66139

Vulnrichment

Updated: 2026-07-24T23:22:06.300Z

NVD

No data.

Redhat

No data.

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