CVE-2026-13512 (GCVE-0-2026-13512)

Vulnerability from cvelistv5 – Published: 2026-06-28 22:45 – Updated: 2026-06-28 22:45
VLAI
Title
Databend Tenant client_session_manager.rs state_key authorization
Summary
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.
Severity
5.3 (Medium)
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
6.3 (Medium)
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
6.3 (Medium)
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
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/374520 vdb-entrytechnical-description
https://vuldb.com/vuln/374520/cti signaturepermissions-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 exploitissue-tracking
https://github.com/databendlabs/databend/pull/19931 issue-trackingpatch
Impacted products
Vendor Product Version
n/a Databend Affected: 1.2.881
    cpe:2.3:a:databend:databend:*:*:*:*:*:*:*:*
Credits
Dem000000 (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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        }
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        },
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          "value": "VulDB entry last update"
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      ],
      "title": "Databend Tenant client_session_manager.rs state_key authorization"
    }
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    "dateReserved": "2026-06-28T06:31:32.823Z",
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    "state": "PUBLISHED"
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      "percentile": "0.12403"
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.