{"id":"CVE-2026-65843","summary":"sync-rpc: Arbitrary remote code execution vulnerability","details":"sync-rpc runs asynchronous commands synchronously by putting them in a separate proces. Prior to version 1.3.7, if an attacker could guess the correct port and it was not blocked via a firewall, it was possible to load and execute arbitrary JavaScript files stored on the server running sync-rpc. This issue has been patched in version 1.3.7.","aliases":["GHSA-2x86-cf3f-86gw"],"modified":"2026-11-12T10:45:18.455170929Z","published":"2026-11-11T18:29:55.356Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65843.json","unresolved_ranges":[{"extracted_events":[{"strategy":"StringRangeExpression","range":[{"fixed":"1.3.7"}],"source":"AFFECTED_FIELD"}]},{"extracted_events":[{"range":[{"fixed":"1.3.7"},{"fixed":"1.3.7"}],"source":"DESCRIPTION"}]}],"cna_assigner":"GitHub_M","cwe_ids":["CWE-306"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65843.json"},{"type":"FIX","url":"https://github.com/ForbesLindesay/sync-rpc/commit/ffccfe5bc39ad2e291a79c9e5afe6155ad311f07"},{"type":"ADVISORY","url":"https://github.com/ForbesLindesay/sync-rpc/security/advisories/GHSA-2x86-cf3f-86gw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65843"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/forbeslindesay/sync-rpc","events":[{"introduced":"0"},{"fixed":"ffccfe5bc39ad2e291a79c9e5afe6155ad311f07"}],"database_specific":{"extracted_events":[{"range":[{"fixed":"ffccfe5bc39ad2e291a79c9e5afe6155ad311f07"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["1.3.6","1.3.4","1.3.3","1.3.2","1.3.1","1.3.0","1.2.3","1.2.2","1.2.1","1.2.0","1.1.1","1.1.0","1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65843.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"}]}