CVE-2026-13512: Authorization Bypass in Databend
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.
AI Analysis
Technical Summary
This vulnerability in Databend (<=1.2.881) involves improper authorization checks in the ClientSessionManager::state_key function within the Tenant Handler of the HTTP server component. This flaw allows remote attackers to bypass authorization mechanisms, potentially gaining unauthorized access. Although an exploit exists publicly, no official patch or remediation has been released yet; a pull request addressing the issue is awaiting acceptance.
Potential Impact
Successful exploitation can lead to unauthorized access by bypassing authorization controls in Databend's HTTP Tenant Handler. This may allow attackers to perform actions or access data without proper permissions. The vulnerability is remotely exploitable and an exploit is publicly available, increasing the risk of attack.
Mitigation Recommendations
No official fix or patch is currently available. A pull request to fix the vulnerability is pending acceptance. Users should monitor the vendor's repository or advisory channels for the official patch and apply it once released. Until then, consider restricting access to the affected HTTP service to trusted networks or users to reduce exposure.
CVE-2026-13512: Authorization Bypass in Databend
Description
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 v4.0
Score 5.3medium
Affected software
pkg:cargo/github/databendlabs/databendcpe:2.3:a:databend:databend:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Databend (<=1.2.881) involves improper authorization checks in the ClientSessionManager::state_key function within the Tenant Handler of the HTTP server component. This flaw allows remote attackers to bypass authorization mechanisms, potentially gaining unauthorized access. Although an exploit exists publicly, no official patch or remediation has been released yet; a pull request addressing the issue is awaiting acceptance.
Potential Impact
Successful exploitation can lead to unauthorized access by bypassing authorization controls in Databend's HTTP Tenant Handler. This may allow attackers to perform actions or access data without proper permissions. The vulnerability is remotely exploitable and an exploit is publicly available, increasing the risk of attack.
Mitigation Recommendations
No official fix or patch is currently available. A pull request to fix the vulnerability is pending acceptance. Users should monitor the vendor's repository or advisory channels for the official patch and apply it once released. Until then, consider restricting access to the affected HTTP service to trusted networks or users to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-28T06:31:32.823Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a41a92527e9c79719c118ca
Added to database: 06/28/2026, 23:07:17 UTC
Last enriched: 07/06/2026, 22:22:12 UTC
Last updated: 08/12/2026, 12:41:08 UTC
Views: 58
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