CVE-2021-43999

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.

• CWE-287
• CWE-287

• http://www.openwall.com/lists/oss-security/2022/01/11/7Mailing List, Third Party Advisory
• https://lists.apache.org/thread/4dt9h5mo4o9rxlgxm3rp8wfqdtdjn2z9Mailing List, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2022/01/11/7Mailing List, Third Party Advisory
• https://lists.apache.org/thread/4dt9h5mo4o9rxlgxm3rp8wfqdtdjn2z9Mailing List, Vendor Advisory

Published

Jan 11, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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