{"id":"CVE-2026-108839","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.","modified":"2026-10-13T02:45:46.544082186Z","published":"2026-10-11T13:26:00.141Z","database_specific":{"cwe_ids":["CWE-59"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108839.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108839.json"},{"type":"ADVISORY","url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/thclaws-api-inputs-symlink-escape"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108839"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/thclaws-through-0.141.0-symlink-following-file-write-via-post-v1-inputs"},{"type":"PACKAGE","url":"https://github.com/thClaws/thClaws"},{"type":"ARTICLE","url":"https://github.com/thClaws/thClaws/blob/v0.141.0/crates/core/src/api_v1/artifacts.rs#L335-L420"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/thclaws/thclaws","events":[{"introduced":"0"},{"fixed":"94ca60afe79d3022e64ea532abd33f5bfe5909f8"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.141.0"},{"fixed":"0.141.0"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v0.140.0","v0.139.0","v0.138.0","v0.137.0","v0.136.0","v0.135.0","v0.134.0","v0.133.0","v0.132.0","v0.131.0","v0.130.0","v0.129.0","v0.128.0","v0.127.0","v0.126.0","v0.125.0","v0.124.0","v0.123.0","v0.122.0","v0.121.0","v0.120.0","v0.119.0","v0.118.0","v0.117.0","v0.116.0","v0.115.0","v0.114.0","v0.113.0","v0.112.0","v0.111.0","v0.110.0","v0.109.0","v0.108.0","v0.107.0","v0.106.0","v0.105.0","v0.104.0","v0.103.0","v0.102.0","v0.101.0","v0.100.0","v0.99.0","v0.98.0","v0.97.0","v0.96.0","v0.95.0","v0.94.0","v0.93.0","v0.92.0","v0.91.0","v0.90.0","v0.89.0","v0.88.0","v0.87.0","v0.86.0","v0.85.0","v0.84.0","v0.83.0","v0.82.0","v0.81.0","v0.80.0","v0.79.0","v0.78.0","v0.77.0","v0.76.0","v0.75.0","v0.74.0","v0.73.0","v0.72.0","v0.71.0","v0.70.0","v0.69.0","v0.68.0","v0.67.0","v0.66.0","v0.65.0","v0.64.0","v0.63.0","v0.62.0","v0.61.0","v0.60.0","v0.59.0","v0.58.0","v0.56.0","v0.54.0","v0.53.0","v0.52.0","v0.51.0","v0.50.0","v0.49.0","v0.48.0","v0.47.0","v0.46.0","v0.45.0","v0.44.0","v0.43.0","v0.42.0","v0.41.0","v0.39.0","v0.38.0","v0.37.0","v0.36.0","v0.35.6","v0.35.5","v0.35.4","v0.35.3","v0.35.2","v0.35.0","v0.34.0","v0.33.0","v0.32.2","v0.32.1","v0.32.0","v0.31.0","v0.30.0","v0.29.0","v0.28.0","v0.27.0","v0.26.0","v0.25.0","v0.24.0","v0.23.0","v0.22.0","v0.21.0","v0.20.0","v0.19.0","v0.18.0","v0.17.1","v0.17.0","v0.16.1","v0.16.0","v0.15.0","v0.14.0","v0.13.6","v0.13.5","v0.13.4","v0.13.3","v0.13.2","v0.13.1","v0.13.0","v0.12.0","v0.11.0","v0.10.0","v0.9.10","v0.9.9","v0.9.8","v0.9.7","v0.9.6","v0.9.5","v0.9.4","v0.9.3","v0.9.2","v0.9.1","v0.9.0","v0.8.9","v0.8.8","v0.8.7","v0.8.6","v0.8.5","v0.8.4","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.7","v0.7.6","v0.7.5","v0.7.4","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v0.6.9","v0.6.8","v0.6.7","v0.6.6","v0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.0","v0.4.2","v0.4.1","v0.4.0","v0.3.5","v0.3.4","v0.3.3","v0.3.2","v0.3.1","v0.3.0","v0.2.2","v0.2.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108839.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}