What’s Vulnerable › Vulnerabilities

CVE-2026-63307: Chat2DB < 5.3.0 Insecure Direct Object Reference via GET /api/connection/datasource

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-17 · updated 2026-10-24
• Weakness: CWE-639

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.

Affected products

• OtterMind Chat2DB: before 5.3.0 — fixed in 5.3.0

How to fix

Upgrade to a fixed version: OtterMind Chat2DB 5.3.0. Check the vendor advisory for mitigations.

References

• https://github.com/OtterMind/Chat2DB/issues/1839
• https://github.com/OtterMind/Chat2DB/releases/tag/v5.3.0
• https://www.vulncheck.com/advisories/forgecode-arbitrary-code-execution-via-unvetted-mcp-json-in-untrusted-repository

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