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CVE-2026-105466— IBM® Db2® is vulnerable to a denial of service when inserting into a table with XML columns under specific conditions

Quick assessment

Affected
IBM Db2
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.

IBM Db2 11.5.0 至 11.5.9 以及 12.1.0 至 12.1.5 版本中存在一个拒绝服务（DoS）漏洞，特定条件下向包含 XML 列的表中插入数据时可能触发此漏洞。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 2

VendorProduct Version RangeStatus
IBM Db2 11.5.0≤ 11.5.9 affected
12.1.0≤ 12.1.5 affected
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I. Basic Information for CVE-2026-105466

Vulnerability Information
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Vulnerability Title
IBM® Db2® is vulnerable to a denial of service when inserting into a table with XML columns under specific conditions
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to a denial of service when inserting into a table with XML columns under specific conditions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM Db2 11.5.0 ~ 11.5.9 cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:aix:*:*

II. Public POCs for CVE-2026-105466

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III. Intelligence Information for CVE-2026-105466

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Vendor Advisories for CVE-2026-105466 (1)

Same Patch Batch · IBM · 2026-10-12 · 61 CVEs total

CVE-2026-96012 9.9 CRITICAL IBM Db2 Mirror for i Privilege Escalation
CVE-2026-96119 9.9 CRITICAL IBM i is Affected By An Improper Control of Code Generation Vulnerability in HTTP Server A
CVE-2026-90920 9.8 CRITICAL Maximo AI Service Code Injection
CVE-2026-82101 9.6 CRITICAL DataStage on Cloud Pak for Data Path Traversal
CVE-2026-82103 9.6 CRITICAL DataStage on Cloud Pak for Data Information Disclosure
CVE-2026-82110 9.6 CRITICAL DataStage on Cloud Pak for Data Path Traversal
CVE-2026-105465 8.8 HIGH IBM® Db2® is vulnerable to privilege escalation when db2ssh is enabled with the db2 instan
CVE-2026-19620 8.8 HIGH IBM Planning Analytics Local is affected by security vulnerabilities
CVE-2026-19622 8.8 HIGH IBM Planning Analytics Local is affected by security vulnerabilities
CVE-2026-102627 8.8 HIGH Security Vulnerability identified in IBM TRIRIGA - Zip Slip
CVE-2026-82096 8.8 HIGH DataStage on Cloud Pak for Data Command Injection
CVE-2026-82108 8.8 HIGH DataStage on Cloud Pak for Data Code Injection
CVE-2026-105464 8.8 HIGH IBM® Db2® is vulnerable to a local attacker with DBADM authorization gaining elevated priv
CVE-2026-18529 8.7 HIGH IBM Maximo Application Suite - Location Service for Esri Component Code Execution
CVE-2026-18537 8.7 HIGH IBM Maximo Application Suite - Location Service for Esri Component Code Execution
CVE-2026-93886 8.3 HIGH IBM i is Affected By An Improper Neutralization of Input Vulnerability in HTTP Server Admi
CVE-2026-96262 8.2 HIGH IBM Power Systems Firmware Buffer Overflow
CVE-2026-19627 8.2 HIGH IBM Planning Analytics Local is affected by security vulnerabilities
CVE-2026-96266 8.2 HIGH IBM Power Systems Firmware Buffer Overflow
CVE-2026-96265 8.2 HIGH IBM Power Systems Firmware Improper Memory Buffer Restriction

Showing top 20 of 61 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Db2
Same vendor: IBM
Same weakness: CWE-770

V. Comments for CVE-2026-105466

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