In OpenStack Zaqar before 22.0.2, WSGI transport mishandles the URL-Signature header. By sending a request with an empty URL-Signature header, an unauthenticated remote attacker who knows a target project's UUID may bypass both Keystone authentication and pre-signed URL verification, resulting in the ability to read, enumerate, create, and delete that project's queues, messages, claims, and subscriptions. By additionally claiming an administrative role, the attacker may also perform administrative operations, such as managing pools and flavors in admin_mode deployments. Only deployments using the WSGI transport with an authentication strategy configured are affected; the websocket transport is not affected.
CVSS
No CVSS.
References
Configurations
No configuration.
History
24 Sep 2026, 19:17
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24 Sep 2026, 15:18
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Information
Published : 2026-09-24 15:18
Updated : 2026-09-26 23:16
NVD link : CVE-2026-97404
Mitre link : CVE-2026-97404
CVE.ORG link : CVE-2026-97404
JSON object : View
Products Affected
No product.
CWE
CWE-348
Use of Less Trusted Source
