CVE catalog
CVE-2021-43999
UBUNTU-CVE-2021-43999
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.78% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | guacamole-server | 16.04 | 0.8.3-1build2 | vulnerable |
| Ubuntu | guacamole-server | 16.04 | 0.8.3-2 | vulnerable |
| Ubuntu | guacamole-server | 18.04 | 0.9.9-2 | vulnerable |
| Ubuntu | guacamole-server | 18.04 | 0.9.9-2build1 | vulnerable |
| Ubuntu | guacamole-server | 22.04 | 1.3.0-1 | vulnerable |
| Ubuntu | guacamole-server | 22.04 | 1.3.0-1build1 | vulnerable |
| Ubuntu | guacamole-server | 22.04 | 1.3.0-1.1 | vulnerable |
| Ubuntu | guacamole-server | 24.04 | 1.3.0-1.1 | vulnerable |
| Ubuntu | guacamole-server | 24.04 | 1.3.0-1.3ubuntu1 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
No matching packages in this catalog.
Observed: