---
id: CVE-2026-13257
title: >-
  IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6,
  10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow an
  authenticated user to forge signature requests due to improper verification of
  data authent…
summary: >-
  IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6,
  10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow an
  authenticated user to forge signature requests due to improper verification of
  data authent…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-345
vendor: ibm
product: datapower_gateway
affected:
  - 'datapower_gateway >= 10.5.0.0, < 10.5.0.23'
  - 'datapower_gateway >= 10.6.0.0, < 10.6.0.11'
  - 'datapower_gateway >= 10.6.1.0, < 11.0.0.3'
  - 'datapower_gateway >= 11.0.0.0, < 11.0.0.3'
patched:
  - datapower_gateway 11.0.0.3
published: '2026-10-08'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T23:59:21.327'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-13257'
references:
  - url: 'https://www.ibm.com/support/pages/node/7289775'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00135
epssPercentile: 0.02952
ingestedAt: '2026-10-08T14:47:16.366Z'
---

## Overview

IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow an authenticated user to forge signature requests due to improper verification of data authenticity.

## Affected

- `datapower_gateway >= 10.5.0.0, < 10.5.0.23`
- `datapower_gateway >= 10.6.0.0, < 10.6.0.11`
- `datapower_gateway >= 10.6.1.0, < 11.0.0.3`
- `datapower_gateway >= 11.0.0.0, < 11.0.0.3`

## Remediation

Upgrade past the affected range:

- `datapower_gateway 11.0.0.3`