{"id":"CVE-2026-108839","revision":"9902f9f6360540e7b58e32ee492f84b6","records":[{"revision":"9902f9f6360540e7b58e32ee492f84b6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-108839","aliases":[],"title":"thClaws through 0.141.0 Symlink Following File Write via POST /v1/inputs","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.","state":0,"publishedAt":"2026-10-11T13:26:00.141+00:00","modifiedAt":"2026-10-18T11:53:05.751+00:00","affected":[{"ecosystem":"Vendor product","name":"thClaws","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"thClaws\",\n                    \"product\": \"thClaws\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"0.141.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/thClaws/thClaws\",\n                    \"repo\": \"https://github.com/thClaws/thClaws\"\n                }"}],"metrics":[{"system":"CVSS 4.0","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","score":2.3,"severity":"LOW"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L","score":4.2,"severity":"MEDIUM"}],"references":["https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/thclaws-api-inputs-symlink-escape","https://github.com/thClaws/thClaws/blob/v0.141.0/crates/core/src/api_v1/artifacts.rs#L335-L420","https://github.com/thClaws/thClaws","https://www.vulncheck.com/advisories/thclaws-through-0.141.0-symlink-following-file-write-via-post-v1-inputs"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-108839","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-108839","identifiers":["CVE-2026-108839"]},"retained":false,"historicalAffected":[]}],"coverage":[]}