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CVE Vulnerability Details :
CVE-2026-13512
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-28 Jun, 2026 | 22:45
Updated At-30 Jun, 2026 | 18:01
Rejected At-
▼CVE Numbering Authority (CNA)
Databend Tenant client_session_manager.rs state_key authorization

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.

Affected Products
Vendor
n/a
Product
Databend
CPEs
  • cpe:2.3:a:databend:databend:*:*:*:*:*:*:*:*
Modules
  • Tenant Handler
Versions
Affected
  • 1.2.881
Problem Types
TypeCWE IDDescription
CWECWE-639Authorization Bypass
CWECWE-285Improper Authorization
Type: CWE
CWE ID: CWE-639
Description: Authorization Bypass
Type: CWE
CWE ID: CWE-285
Description: Improper Authorization
Metrics
VersionBase scoreBase severityVector
4.05.3MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.16.3MEDIUM
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
3.06.3MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
2.06.5N/A
AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 6.3
Base severity: MEDIUM
Vector:
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
Version: 3.0
Base score: 6.3
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Version: 2.0
Base score: 6.5
Base severity: N/A
Vector:
AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
Dem000000 (VulDB User)
coordinator
VulDB CNA Team
Timeline
EventDate
Advisory disclosed2026-06-28 00:00:00
VulDB entry created2026-06-28 02:00:00
VulDB entry last update2026-06-28 08:36:36
Event: Advisory disclosed
Date: 2026-06-28 00:00:00
Event: VulDB entry created
Date: 2026-06-28 02:00:00
Event: VulDB entry last update
Date: 2026-06-28 08:36:36
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/vuln/374520
vdb-entry
technical-description
https://vuldb.com/vuln/374520/cti
signature
permissions-required
https://vuldb.com/cve/CVE-2026-13512
third-party-advisory
https://vuldb.com/submit/838874
third-party-advisory
https://github.com/databendlabs/databend/issues/19930
exploit
issue-tracking
https://github.com/databendlabs/databend/pull/19931
issue-tracking
patch
Hyperlink: https://vuldb.com/vuln/374520
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/vuln/374520/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/cve/CVE-2026-13512
Resource:
third-party-advisory
Hyperlink: https://vuldb.com/submit/838874
Resource:
third-party-advisory
Hyperlink: https://github.com/databendlabs/databend/issues/19930
Resource:
exploit
issue-tracking
Hyperlink: https://github.com/databendlabs/databend/pull/19931
Resource:
issue-tracking
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found