Is there a public exploit for CVE-2026-121455?

No public exploit for CVE-2026-121455 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-121455?

CVE-2026-121455 scores CVSS 5.3 (v4.0), rated medium.

What does CVE-2026-121455 affect?

CVE-2026-121455 affects dbgate dbgate.

5.3 Medium

DbGate before 7.3.3 contains a missing authorization vulnerability that allows connection-restricted authenticated users to bypass…

CVE-2026-121455

DbGate before 7.3.3 contains a missing authorization vulnerability that allows connection-restricted authenticated users to bypass LOGINPERMISSIONS 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.

Assessment

CVSS: 5.3 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 3 November 2026
Last updated: 3 November 2026
Affected: dbgate · dbgate
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N

At the source

EUVD (ENISA)

References

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