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CVE-2026-97380— MariaDB: GRANT PROXY with empty password incorrectly checks grantor's privileges

Quick assessment

Affected
MariaDB server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MariaDB 服务器是 MySQL 服务器的社区开发分支。在 10.6.1 至 10.6.28、10.11.19、11.4.13、11.8.9、12.3.3 和 13.0.2 版本中， 语句将带有空密码的 子句视为未指定认证，导致其错误地检查授权者（grantor）的权限。低权限攻击者若能指定其他账户名称，即可利用此授权错误来设置该账户的密码。该问题已在 10.6.28、10.11.19、11.4.13、11.8.9、12.3.3 和 13.0.2 版本中修复。

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1548.003 · Sudo and Sudo Caching

Affected Version Matrix 6

VendorProduct Version RangeStatus
MariaDB server >= 10.6.1, < 10.6.28 affected
>= 10.11.1, < 10.11.19 affected
>= 11.4.1, < 11.4.13 affected
>= 11.8.1, < 11.8.9 affected
>= 12.3.1, < 12.3.3 affected
>= 13.0.1, < 13.0.2 affected
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I. Basic Information for CVE-2026-97380

Vulnerability Information
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Vulnerability Title
MariaDB: GRANT PROXY with empty password incorrectly checks grantor's privileges
Source: CVE Program / CVE List V5
Vulnerability Description
MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the GRANT PROXY statement treats an IDENTIFIED clause with an empty password as though authentication were not specified, causing it to check the wrong grantor privileges. A low-privileged attacker who can name another account can exploit this authorization error to set that account's password. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经验证的口令修改
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MariaDB server >= 10.6.1, < 10.6.28 -

II. Public POCs for CVE-2026-97380

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III. Intelligence Information for CVE-2026-97380

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Patches & Fixes for CVE-2026-97380 (2)

Vendor Advisories for CVE-2026-97380 (1)

Vendor Pages for CVE-2026-97380 (5)

Same Patch Batch · MariaDB · 2026-10-16 · 7 CVEs total

CVE-2026-85748 9.9 CRITICAL MariaDB: Use-after-free with a large number of SYS_REFCURSOR's
CVE-2026-85746 9.9 CRITICAL MariaDB: Out-of-bound buffer write on in `ST_AsText` of nested GeometryCollections
CVE-2026-92262 9.9 CRITICAL MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
CVE-2026-86047 7.7 HIGH MariaDB: Insufficient quoting in mariadb-dump and SHOW commands
CVE-2026-85985 5.4 MEDIUM MariaDB: Unauthorized file access via CONNECT engine UDFs
CVE-2026-85745 4.3 MEDIUM MariaDB: Out-of-bound buffer read on in `ST_Area` of a multipolygon.

IV. Related Vulnerabilities

Same product: server
Same vendor: MariaDB
Same weakness: CWE-620

V. Comments for CVE-2026-97380

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