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Description

The terminal emulator of Apache Guacamole 1.5.5 and older does not properly validate console codes received from servers via text-based protocols like SSH. If a malicious user has access to a text-based connection, a specially-crafted sequence of console codes could allow arbitrary code to be executed with the privileges of the running guacd process. Users are recommended to upgrade to version 1.6.0, which fixes this issue.

PUBLISHED Reserved 2024-05-10 | Published 2025-07-02 | Updated 2026-02-26 | Assigner apache




MEDIUM: 6.8CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-129 Improper Validation of Array Index

Product status

Default status
unaffected

0.8.0 (semver)
affected

Timeline

2024-05-04:Reported to security@guacamole.apache.org
2024-05-04:Report acknowledged by project
2024-05-10:Report confirmed by project

Credits

Tizian Seehaus (Tibotix) reporter

References

www.openwall.com/lists/oss-security/2025/07/01/2

lists.apache.org/thread/sgs8lplbkrpvd3hrvcnnxh3028h4py70 vendor-advisory

cve.org (CVE-2024-35164)

nvd.nist.gov (CVE-2024-35164)

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