CVE-2026-13257

Analyzed Analyzed - Analysis Complete

BaseFortify

Publication date: 2026-10-08

Last updated on: 2026-10-14

Assigner: IBM Corporation

Description

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-08

Last Modified

2026-10-14

Generated

2026-10-19

AI Q&A

2026-10-08

EPSS Evaluated

2026-10-18

NVD

CVE-2026-13257

EUVD

EUVD-2026-95001

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	datapower_gateway	From 11.0.0.0 (inc) to 11.0.0.3 (exc)
ibm	datapower_gateway	From 10.6.1.0 (inc) to 11.0.0.3 (exc)
ibm	datapower_gateway	From 10.6.0.0 (inc) to 10.6.0.11 (exc)
ibm	datapower_gateway	From 10.5.0.0 (inc) to 10.5.0.23 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-345	The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Attack-Flow Graph

Executive Summary

This vulnerability in IBM DataPower Gateway allows an authenticated user to forge signature requests due to improper verification of data authenticity. This means an attacker with valid credentials could manipulate requests to appear legitimate when they are not.

Detection Guidance

Detection requires checking IBM DataPower Gateway versions against affected releases (10.5.0.0-10.5.0.22, 10.6.1-10.6.6, 10.6.0.0-10.6.0.10, 11.0.0.0-11.0.0.2). Use administrative commands like 'show version' or 'show system' to verify installed versions.

Impact Analysis

An attacker could exploit this to perform unauthorized actions or gain access to sensitive data by forging requests. This could lead to data breaches, unauthorized transactions, or system compromise depending on the environment.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA by enabling unauthorized access to personal or health data. Organizations using affected versions may face legal penalties or reputational damage.

Mitigation Strategies

Apply the latest IBM DataPower Gateway patches or updates to versions beyond the affected ranges (10.5.0.22, 10.6.6, 10.6.0.10, 11.0.0.2). Ensure proper verification of signature requests by reviewing and updating authentication mechanisms.

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