CVE-2026-66139mediumCWE-306

CVE-2026-66139: medium-severity vulnerability in OpenStack Zaqar

Published 24 Jul 2026

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.8epss 0.5%

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

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected products

Related CVEs — OpenStack Zaqar

In the same product, most dangerous first.

References