IBM MQ XML External Entity Injection via mqweb MFT REST API (9.1-10.0)
CVE-2026-13265 Published on September 14, 2026

IBM MQ Managed File Transfer REST API is vulnerable to XML external entity injection
IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow an authenticated attacker with MFT publish authority to obtain sensitive information or cause a denial of service due to XML external entity injection in the mqweb MFT REST API.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-13265 can be exploited with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

What is a XXE Vulnerability?

The software processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

CVE-2026-13265 has been classified to as a XXE vulnerability or weakness.


Products Associated with CVE-2026-13265

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IBM Mq
 

Affected Versions

IBM MQ:

Exploit Probability

EPSS
0.22%
Percentile
11.65%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.