What is CVE-2026-63768?

CVE-2026-63768 is a medium-severity vulnerability in Calcom Cal.diy, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.3/10. Published 2026-07-20.

How severe is CVE-2026-63768?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Open Redirect in Calcom Cal.diy

CVE-2026-63768

cal.diy through 6.2.0 contains an open redirect vulnerability in the conferencing OAuth callback endpoint that allows attackers to redirect users to arbitrary URLs by crafting malicious state parameters. Attackers can exploit the unsigned…

Vulnerability class: Open Redirect

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Calcom Cal.diy — versions 0

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

disclosure@vulncheck.com (issue-tracking, technical-description, exploit)
disclosure@vulncheck.com (issue-tracking, patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-63768?: CVE-2026-63768 is a medium-severity vulnerability in Calcom Cal.diy, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.3/10. Published 2026-07-20.
How severe is CVE-2026-63768?: Medium severity. CVSS v3 base score is 4.3 out of 10.