Cal.com is open-source scheduling software. Prior to 5.9.8, A flaw in the login credentials provider allows an attacker to bypass password verification when a TOTP code is provided, potentially gaining unauthorized access to user accounts. This issue exists due to problematic conditional logic in the authentication flow. This vulnerability is fixed in 5.9.8.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-303"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66489.json"
}{
"cpe": "cpe:2.3:a:cal:cal.com:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "5.9.8"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
]
}