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CVE-2026-13271— IBM MQ Managed File Transfer is affected by a denial of service vulnerability

Quick assessment

Affected
IBM MQ
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 MQ 9.2.0.0 至 9.2.0.44 LTS、9.3.0.0 至 9.3.0.42 LTS、9.4.0.0 至 9.4.0.26 LTS、9.4.0.0 至 9.4.5.1 CD，以及 10.0.0.0 至 10.0.0.5 LTS 和 CD 版本中，由于在命令队列处理过程中未对 XML 外部实体引用进行适当限制，可能导致已认证的攻击者获取敏感信息或引发拒绝服务（DoS）漏洞。

CVSS 8.1 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-13271

Vulnerability Information
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Vulnerability Title
IBM MQ Managed File Transfer is affected by a denial of service vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD Managed File Transfer could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper restriction of XML external entity references in command queue processing.
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:N
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM MQ 9.2.0.0 ~ 9.2.0.44 cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-13271

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III. Intelligence Information for CVE-2026-13271

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Other References for CVE-2026-13271 (1)

Same Patch Batch · IBM · 2026-11-04 · 27 CVEs total

CVE-2026-82418 9.8 CRITICAL IBM Watson Speech Services Cartridge is vulnerable to a Use After Free condition in crypto
CVE-2026-13292 8.8 HIGH IBM MQ Managed File Transfer is affected by an arbitrary code execution vulnerability
CVE-2026-11376 8.8 HIGH IBM MQ is affected by a denial of service vulnerability
CVE-2026-11724 8.5 HIGH IBM MQ Managed File Transfer is affected by an arbitrary code execution vulnerability
CVE-2026-17493 7.5 HIGH IBM Watson Speech Services Cartridge is vulnerable to a D.O.S. in Unpacker.
CVE-2026-12356 7.5 HIGH IBM MQ Managed File Transfer is affected by an arbitrary code execution vulnerability
CVE-2026-10859 7.5 HIGH IBM MQ XMS .NET client is affected by an arbitrary code execution vulnerability
CVE-2026-13289 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-13284 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-18142 7.1 HIGH IBM MQ is affected by a denial of service vulnerability
CVE-2026-110282 6.5 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub
CVE-2026-16725 6.5 MEDIUM IBM Watson Speech Services Cartridge is vulnerable to a Path Traversal in LangSmith
CVE-2026-14252 6.2 MEDIUM IBM MQ is affected by a pasword disclosure vulnerability in the runmqccred utility
CVE-2026-110281 5.9 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub
CVE-2026-108588 5.4 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub
CVE-2026-12538 5.4 MEDIUM IBM MQ Appliance is affected by an improper validation vulnerability
CVE-2026-12550 5.4 MEDIUM IBM MQ is affected by a denial of service vulnerability
CVE-2026-19319 5.3 MEDIUM IBM Watson Speech Services Cartridge is vulnerable to an Out-of-bounds Read in Onnx
CVE-2026-108536 4.6 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub
CVE-2026-110283 4.3 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: MQ
Same vendor: IBM
Same weakness: CWE-611