What is CVE-2026-63307?

CVE-2026-63307 is a medium-severity vulnerability in Ottermind Chat2db, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-07-17.

How severe is CVE-2026-63307?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Ottermind Chat2db

CVE-2026-63307

Chat2DB before 5.3.0 contains an insecure direct object reference vulnerability in the GET /api/connection/datasource/{id} endpoint. The handler calls dataSourceService.queryExistent(id, ...) without an ownership check and returns the decr…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Ottermind Chat2db — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-63307?: CVE-2026-63307 is a medium-severity vulnerability in Ottermind Chat2db, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-07-17.
How severe is CVE-2026-63307?: Medium severity. CVSS v3 base score is 6.5 out of 10.