What is CVE-2026-13512?

CVE-2026-13512 is a medium-severity vulnerability in Databend, classified under Improper Authorization. CVSS score: 6.3/10. Published 2026-06-28.

How severe is CVE-2026-13512?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in Databend

CVE-2026-13512

A vulnerability was identified in Databend up to 1.2.881 on HTTP. This affects the function ClientSessionManager::state_key of the file src/query/service/src/servers/http/v1/session/client_session_manager.rs of the component Tenant Handler…

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

N/a Databend — versions 1.2.881

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)
cna@vuldb.com (issue-tracking, patch)

Frequently asked questions

What is CVE-2026-13512?: CVE-2026-13512 is a medium-severity vulnerability in Databend, classified under Improper Authorization. CVSS score: 6.3/10. Published 2026-06-28.
How severe is CVE-2026-13512?: Medium severity. CVSS v3 base score is 6.3 out of 10.