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Date: Tue, 11 Jan 2022 13:21:35 -0800
From: Mike Jumper <>
Subject: [SECURITY] CVE-2021-43999: Apache Guacamole: Improper validation of
 SAML responses

Severity: high


Apache Guacamole 1.2.0 and 1.3.0 do not properly validate responses
received from a SAML identity provider. If SAML support is enabled,
this may allow a malicious user to assume the identity of another
Guacamole user.


We would like to thank Finn Steglich (ETAS) for reporting this issue.

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