---
title: "CVE-2026-2310: IBM webMethods Integration Server - XML External Entity Injection"
description: "IBM webMethods Integration Server 11.1 contains an XML external entity injection caused by improper processing of XML data, letting remote attackers expose sensitive information or cause memory resource consumption, exploit requires crafted XML input."
url: https://panop.io/threat-heartbeat/CVE-2026-2310/
---

# CVE-2026-2310 IBM webMethods Integration Server - XML External Entity Injection

IBM webMethods Integration Server 11.1 contains an XML external entity injection caused by improper processing of XML data, letting remote attackers expose sensitive information or cause memory resource consumption, exploit requires crafted XML input.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.19% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-2310)

## Details

Type

XML External Entity Injection

Impact

Information Disclosure, Denial Of Service

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

10 September 2026

Updated

15 October 2026

Weakness

[CWE-91](https://cwe.mitre.org/data/definitions/91.html)

## Vendor fix

Update to the latest version of IBM webMethods Integration Server.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-2310](https://nvd.nist.gov/vuln/detail/CVE-2026-2310)
- [https://www.ibm.com/support/pages/node/7286620](https://www.ibm.com/support/pages/node/7286620)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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