CVE-2026-13512: Authorization Bypass in Databend
CVE-2026-13512 is an authorization bypass vulnerability in Databend version 1.2.881 affecting the HTTP Tenant Handler component. The issue arises from the ClientSessionManager::state_key function, allowing remote attackers to bypass authorization controls. An exploit is publicly available, but no official fix has been released yet.
AI Analysis
Technical Summary
This vulnerability in Databend up to version 1.2.881 involves the ClientSessionManager::state_key function within the Tenant Handler component of the HTTP server. It allows remote attackers to bypass authorization mechanisms, potentially granting unauthorized access. The vulnerability is confirmed with a CVSS 5.3 (medium) score and an exploit is publicly available. However, the fix is pending acceptance in a pull request and no official patch or remediation is currently provided.
Potential Impact
Successful exploitation of this vulnerability can lead to unauthorized access due to bypassing authorization controls in Databend's HTTP Tenant Handler. This may allow attackers to perform actions without proper permissions. The impact is rated medium based on the CVSS score of 5.3.
Mitigation Recommendations
No official patch or remediation is currently available as the fix is pending acceptance. Users should monitor the vendor's repository or advisory channels for the acceptance of the pull request and apply the fix once released. Until then, consider restricting access to the affected service to trusted networks or users to reduce exposure.
CVE-2026-13512: Authorization Bypass in Databend
Description
CVE-2026-13512 is an authorization bypass vulnerability in Databend version 1.2.881 affecting the HTTP Tenant Handler component. The issue arises from the ClientSessionManager::state_key function, allowing remote attackers to bypass authorization controls. An exploit is publicly available, but no official fix has been released yet.
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 up to version 1.2.881 involves the ClientSessionManager::state_key function within the Tenant Handler component of the HTTP server. It allows remote attackers to bypass authorization mechanisms, potentially granting unauthorized access. The vulnerability is confirmed with a CVSS 5.3 (medium) score and an exploit is publicly available. However, the fix is pending acceptance in a pull request and no official patch or remediation is currently provided.
Potential Impact
Successful exploitation of this vulnerability can lead to unauthorized access due to bypassing authorization controls in Databend's HTTP Tenant Handler. This may allow attackers to perform actions without proper permissions. The impact is rated medium based on the CVSS score of 5.3.
Mitigation Recommendations
No official patch or remediation is currently available as the fix is pending acceptance. Users should monitor the vendor's repository or advisory channels for the acceptance of the pull request and apply the fix once released. Until then, consider restricting access to the affected 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: 06/28/2026, 23:21:15 UTC
Last updated: 06/29/2026, 01:55:30 UTC
Views: 8
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