Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-107816— MariaDB: `qc_info` plugin can do OOB reads if query contains \0

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 服务器的一个社区开发分支。从 10.6.1 到 10.6.27、10.11.18、11.4.12、11.8.8、12.3.2 和 13.0.1 版本中， 插件可能会被包含嵌入空字节（null bytes）的查询所误导。在这些查询被缓存后，读取 可能会访问堆分配缓冲区末尾之外的数据，从而导致相邻内存信息的泄露或服务器崩溃。该问题已在版本 10.6.28、10.11.19、11.4.13、11.8.9、12.3.3 和 13.0.2 中得到修复。

CVSS 6.4 · Medium

Possible ATT&CK Techniques 2 AI

T1015 T1053 · Scheduled Task/Job

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
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-107816

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
MariaDB: `qc_info` plugin can do OOB reads if query contains \0
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 qc_info plugin could be confused by a query containing embedded null bytes. Reading information_schema.query_cache_info after such a query was cached could access data beyond the end of a heap-allocated buffer, potentially disclosing adjacent memory or crashing the server. 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:C/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
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-2026-107816

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-107816

请登录查看更多情报信息。

Other References for CVE-2026-107816 (9)

Same Patch Batch · MariaDB · 2026-10-09 · 9 CVEs total

CVE-2026-107815 8.5 HIGH MariaDB: one byte OOB write in DOS tables of the CONNECT engine
CVE-2026-107814 8.4 HIGH MariaDB: Insecure $HOME in MariaDB rpm packages
CVE-2026-107818 8.4 HIGH MariaDB: environment injection via wsrep bootstrap in the mariadb.service file
CVE-2026-107821 8.0 HIGH MariaDB: insufficient validation of binary frm data when opening a table
CVE-2026-107823 7.2 HIGH MariaDB: privilege escalation via incorrect view frm parsing
CVE-2026-107822 6.4 MEDIUM MariaDB: database privilege escalation via user / role name collision in the acl cache
CVE-2026-107819 5.9 MEDIUM MariaDB Connector/C: libmariadb allowed cleartext password leakage on TLS hostname verific
CVE-2026-107817 4.4 MEDIUM MariaDB: mysql_json plugin OOB reads

IV. Related Vulnerabilities

Same product: server
Same vendor: MariaDB
Same weakness: CWE-125

V. Comments for CVE-2026-107816

No comments yet

Leave a comment