thClaws through 0.141.0 contains a link-following vulnerability in the post_inputs handler of the v1 API POST /v1/inputs endpoint that allows writes outside the workspace by following symlinks. Attackers who plant a symlink under the allowed inputs/ prefix can cause later authenticated uploads to write or truncate files outside the workspace with daemon privileges.
History

Sun, 18 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Thclaws
Thclaws thclaws
Vendors & Products Thclaws
Thclaws thclaws

Sun, 11 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
Description thClaws through 0.141.0 contains a link-following vulnerability in the post_inputs handler of the v1 API POST /v1/inputs endpoint that allows writes outside the workspace by following symlinks. Attackers who plant a symlink under the allowed inputs/ prefix can cause later authenticated uploads to write or truncate files outside the workspace with daemon privileges.
Title thClaws through 0.141.0 Symlink Following File Write via POST /v1/inputs
Weaknesses CWE-59
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-11T13:26:00.141Z

Updated: 2026-10-18T11:53:05.751Z

Reserved: 2026-10-11T12:50:50.838Z

Link: CVE-2026-108839

cve-icon Vulnrichment

Updated: 2026-10-18T11:44:38.459Z

cve-icon NVD

Status : Deferred

Published: 2026-10-11T14:17:04.390

Modified: 2026-10-18T12:17:01.393

Link: CVE-2026-108839

cve-icon Redhat

No data.