CVE-2026-66139

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

CVSS 3.1

4.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

EPSS

0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-25)

CWE

CWE-306

Published

2026-07-24

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

References

• https://bugs.launchpad.net/ossa/+bug/2161254
• https://www.openwall.com/lists/oss-security/2026/07/23/7
• http://www.openwall.com/lists/oss-security/2026/07/24/27

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