CVE-2026-13512

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 31.2% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-06-30.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-06-28 22:45Z2 MO AGO

Last updated

2026-06-30 18:01Z2 MO AGO

Reserved

2026-06-28

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS 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

Weaknesses

• CWE-285Improper AuthorizationClass
• CWE-639Authorization Bypass Through User-Controlled KeyBase

Data version

5.2

Document digest

a4ed205acb21c85e829a6852649d1baef25bcaea07d1003f5d8a4ed6dfae4fd5

• vuldb.comVDB-374520 | Databend Tenant client_session_manager.rs state_key authorizationhttps://vuldb.com/vuln/374520vdb-entrytechnical-description
• vuldb.comVDB-374520 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/374520/ctisignaturepermissions-required
• vuldb.comCVE-2026-13512 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-13512third-party-advisory
• vuldb.comSubmit #838874 | Databend Labs Databend main branch commit 21377cd76bb1e84f92bfc9da1acc881b8841f1de; affected versions unknown CWE-639 Authorization Bypass Through User-Controlled Keyhttps://vuldb.com/submit/838874third-party-advisory
• github.comhttps://github.com/databendlabs/databend/issues/19930exploitissue-tracking
• github.comhttps://github.com/databendlabs/databend/pull/19931issue-trackingpatch