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.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
OpenStack Zaqar unaffected
Version Status Constraints
12.0.0 affected < 20.1.1
21.0.0 affected —
22.0.0 affected —

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

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
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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

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

Link: CVE-2026-66139

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses