VULNERABILITY INTELLIGENCE

CVE-2021-33054

CVSS score7.5 HIGH

EPSS probability1.00%

CISA KEVNot currently listed

Published2021-06-04

Last modified2026-06-17

Description

SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receives. Any actor with network access to the deployment could impersonate users when SAML is the authentication method. (Only versions after 2.0.5a are affected.)