An authenticated attacker can spoof another GUI user's identity by sending their request with the custom header "Grpc-Metadata-USER". This can lead to an account takeover attack from a user with low privileges to administrator.
{
"cna_assigner": "rapid7",
"cwe_ids": [
"CWE-290"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18972.json"
}