{"schema":"threatline.record/2","record":{"id":"CVE-2026-108839","aliases":[],"summary":"thClaws through 0.141.0 Symlink Following File Write via POST /v1/inputs","details":"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.","categories":["Unclassified"],"product":"thClaws","vendor":"thClaws","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-108839","source_modified_at":"2026-10-18T11:53:05.751Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"thClaws","vendor":"thClaws","versions":[{"version":"0","lessThanOrEqual":"0.141.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":2.3,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00251,"percentile":0.15577,"score_date":"2026-10-23"},"published_at":"2026-10-11T13:26:00.141Z","modified_at":"2026-10-18T11:53:05.751Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-108839","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-18T11:53:05.751Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-108839","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/thclaws-api-inputs-symlink-escape","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://github.com/thClaws/thClaws/blob/v0.141.0/crates/core/src/api_v1/artifacts.rs#L335-L420","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/thClaws/thClaws","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/thclaws-through-0.141.0-symlink-following-file-write-via-post-v1-inputs","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-18T11:35:55.514761Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-18T11:53:05.751Z","content_hash":"7ac4675007d89fc0d47c55a7afded63c067330ef27d47e142a5ddfbe991f863a"}}