VULNERABILITY INTELLIGENCE

CVE-2021-41767

CVSS score6.5 MEDIUM

EPSS probability1.93%

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:N/A:N

Description

Apache Guacamole 1.3.0 and older may incorrectly include a private tunnel identifier in the non-private details of some REST responses. This may allow an authenticated user who already has permission to access a particular connection to read from or interact with another user's active use of that same connection.

Weakness classification

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

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