VULNERABILITY INTELLIGENCE

CVE-2021-43999

CVSS score8.8 HIGH

EPSS probability1.78%

CISA KEVNot currently listed

Published2022-01-11

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

security@apache.org: CWE-287
nvd@nist.gov: CWE-287

Primary references

security@apache.org — Mailing List, Third Party Advisory
security@apache.org — Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Vendor Advisory