CVE-2026-63307 Chat2DB < 5.3.0 Insecure Direct Object Reference via GET /api/connection/datasource
Authenticated users can read plaintext database credentials of other users via insecure direct object reference in Chat2DB.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-63307?
CVE-2026-63307 is a high-severity vulnerability in OtterMind Chat2DB, published on 17 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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 decrypted password field, allowing any authenticated non-admin user to enumerate datasource IDs and read the plaintext database credentials of datasources owned by other users.
Weakness: CWE-639
Which versions are affected by CVE-2026-63307?
How do I fix CVE-2026-63307?
No fix has been published for CVE-2026-63307 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-63307 being exploited?
There is no known exploitation of CVE-2026-63307 in the wild and no public exploit code.
Sources
Also known as GHSA-6h56-q7r6-j7xg.