CVE-2026-13265 IBM MQ Managed File Transfer REST API is vulnerable to XML external entity injection
An authenticated attacker with MFT publish authority can exploit XML external entity injection in the REST API to read sensitive data or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13265?
CVE-2026-13265 is a medium-severity vulnerability in IBM MQ, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-611
Which versions are affected by CVE-2026-13265?
How do I fix CVE-2026-13265?
No fix has been published for CVE-2026-13265 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-13265 being exploited?
There is no known exploitation of CVE-2026-13265 in the wild and no public exploit code.
Sources
Also known as GHSA-5r5q-97h5-g9v3.