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. The manipulation leads to authorization bypass. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The pull request to fix this issue awaits acceptance.

CVSS v3 6.3 MEDIUM
CVSS v2.0 6.5 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/databendlabs/databend/issues/19930
https://github.com/databendlabs/databend/pull/19931
https://vuldb.com/cve/CVE-2026-13512
https://vuldb.com/submit/838874
https://vuldb.com/vuln/374520
https://vuldb.com/vuln/374520/cti

Configurations

No configuration.

History

28 Jun 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-28 23:16

Updated : 2026-06-28 23:16

NVD link : CVE-2026-13512

Mitre link : CVE-2026-13512

CVE.ORG link : CVE-2026-13512

JSON object : View

Products Affected

No product.

CWE

CWE-285

Improper Authorization

CWE-639

Authorization Bypass Through User-Controlled Key

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