CVE-2026-13512

MEDIUM 6.3

Databend Tenant client_session_manager.rs state_key authorization

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639 CWE-285
Vendor	n/a
Product	databend
Published	Jun 28, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / Databend

1.2.881

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 Dem000000 (VulDB User) VulDB CNA Team