@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.1 and 1.14.1, the exact path (method name) matcher used by RBAC performs a prefix comparison instead of an equality comparison when case-insensitive matching is enabled. If one service method name prefixes another and the methods have different access rules, a request for the longer method can match the shorter method's rule and cause incorrect authorization. This issue is fixed in versions 1.13.1 and 1.14.1.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-187",
"CWE-863"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101914.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.13.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "1.14.0"
},
{
"fixed": "1.14.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "6cf64b596da03f1942a6b168998f0670217a99c4"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "a6c5b31180cc8cea94d0a5ea215ce31a49e0409f"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "f32f3712e44581d8dfc8359bd8d30096662f4c75"
}
],
"source": "REFERENCES_COMMIT"
}
]
}