Vulnerability · Published Nov 3, 2026 · Assigned by VulnCheck

CVE-2026-121455DbGate before 7.3.3 Missing Authorization via /connections/test and /connections/save

Medium 5.4

In plain English

A medium-severity missing authorization in dbgate from dbgate. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 83.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

DbGate before 7.3.3 contains a missing authorization vulnerability that allows connection-restricted authenticated users to bypass LOGIN_PERMISSIONS because test() and save() never call testConnectionPermission. Attackers can submit arbitrary connection definitions to POST /connections/test to probe internal database hosts, or to /connections/save to overwrite stored connections.

Affected products (as reported)

Vendor	Product	Versions
dbgate	dbgate	0 – before 7.3.3

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

GitHub Issue #1601 issue-tracking
https://github.com/dbgate/dbgate product
Fix commit patch
https://github.com/dbgate/dbgate/blob/v7.3.2/packages/api/src/controllers/connections.js#L227-L250 technical-description
https://github.com/dbgate/dbgate/blob/v7.3.2/packages/api/src/controllers/connections.js#L372-L390 technical-description
VulnCheck Advisory: DbGate before 7.3.3 Missing Authorization via /connections/test and /connections/save third-party-advisory