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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-306"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65843.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"fixed": "1.3.7"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
}
]
},
{
"extracted_events": [
{
"range": [
{
"fixed": "1.3.7"
},
{
"fixed": "1.3.7"
}
],
"source": "DESCRIPTION"
}
]
}
]
}{
"extracted_events": [
{
"range": [
{
"fixed": "ffccfe5bc39ad2e291a79c9e5afe6155ad311f07"
}
],
"source": "REFERENCES_COMMIT"
}
]
}