Openstack Keystonemiddleware vulnerabilities

4 CVEs affecting Openstack Keystonemiddleware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-22797, published 2026-01-19.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2015-1852, published 2015-04-17. Medium severity, CVSS 4.3. EPSS: 2.6% chance of exploitation in the next 30 days. The s3_token middleware in OpenStack keystonemiddleware before 1.6.0 and python-keystoneclient before 1.4.0 disables certification verification when the "insecure" option is set in a paste…
CVE-2015-7546, published 2016-02-03. High severity, CVSS 7.5. EPSS: 2% chance of exploitation in the next 30 days. The identity service in OpenStack Identity (Keystone) before 2015.1.3 (Kilo) and 8.0.x before 8.0.2 (Liberty) and keystonemiddleware (formerly python-keystoneclient) before 1.5.4 (Kilo) and Liberty…
CVE-2014-7144, published 2014-10-02. Medium severity, CVSS 4.3. EPSS: 2% chance of exploitation in the next 30 days. OpenStack keystonemiddleware (formerly python-keystoneclient) 0.x before 0.11.0 and 1.x before 1.2.0 disables certification verification when the "insecure" option is set in a paste configuration…
CVE-2026-22797, published 2026-01-19. Critical severity, CVSS 9.9. EPSS: 0.7% chance of exploitation in the next 30 days. An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware…