CVE-2026-66139CWE-306

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

Medium · published July 24, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
40.1
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00476 · 40.1th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-07-24T04:14Z
EPSS history
Timeline
  • 24 JUL 04:14Z
    OpenStack Zaqar through 22.0.0 allows authentication bypass via an EXTRA-SPEC header when a UUID is known
    cvelistv5