CVE-2026-17268
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Session Token Bypass in IBM i

Publication date: 2026-08-12

Last updated on: 2026-08-12

Assigner: IBM Corporation

Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due to improper validation of a session token.

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Meta Information

Published
2026-08-12
Last Modified
2026-08-12
Generated
2026-08-13
AI Q&A
2026-08-12
EPSS Evaluated
N/A
NVD
CVE-2026-17268
EUVD
EUVD-2026-57362

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
ibm i 7.6
ibm i 7.5
ibm i 7.4
ibm i 7.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-294 A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).

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Executive Summary

This vulnerability in IBM i 7.6, 7.5, 7.4, and 7.3 allows a remote authenticated attacker to bypass security restrictions. It occurs due to improper validation of a session token, which means the system fails to correctly verify user permissions during sessions.

Impact Analysis

An attacker could exploit this to gain unauthorized access to sensitive data or perform actions beyond their intended permissions. This may lead to data breaches, unauthorized modifications, or other malicious activities depending on the attacker's goals.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other regulations by enabling unauthorized access to personal or sensitive data. Organizations may face legal penalties, reputational damage, and loss of trust due to such security failures.

Mitigation Strategies

Apply the latest IBM i PTFs or updates provided by IBM to address the improper session token validation issue.

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