{"id":"CVE-2026-108839","published":"2026-10-11T14:17:04.390","lastModified":"2026-10-16T19:18:44.867","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.","cvssScore":4.2,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L","cwes":["CWE-59"],"vendors":[],"products":[],"references":[{"url":"https://github.com/thClaws/thClaws","tags":[]},{"url":"https://github.com/thClaws/thClaws/blob/v0.141.0/crates/core/src/api_v1/artifacts.rs#L335-L420","tags":[]},{"url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/thclaws-api-inputs-symlink-escape","tags":[]},{"url":"https://www.vulncheck.com/advisories/thclaws-through-0.141.0-symlink-following-file-write-via-post-v1-inputs","tags":[]}],"exploitRefs":[{"url":"https://github.com/thClaws/thClaws","tags":[]},{"url":"https://github.com/thClaws/thClaws/blob/v0.141.0/crates/core/src/api_v1/artifacts.rs#L335-L420","tags":[]}],"hasPoc":true,"ai":null}