Description
IBM i 7.3, 7.4, 7.5, and 7.6 could allow an unathenticated remote attacker to bypass security restrictions due to improper access control. By sending a specially crafted HTTP request to any URL within the Navigator application prior to authentication, a bad actor could exploit this vulnerability to alter server-side session security state.
Published: 2026-10-20
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

IBM i Release5770-SS1 Option 3  PTF Number(s)PTF Download Link(s)7.6SJ11740 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11740 7.5SJ11745 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11745 7.4SJ11746 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11746 7.3SJ11747 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11747 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

Tracking

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Advisories

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History

Tue, 20 Oct 2026 22:00:00 +0000

Type Values Removed Values Added
Description IBM i 7.3, 7.4, 7.5, and 7.6 could allow an unathenticated remote attacker to bypass security restrictions due to improper access control. By sending a specially crafted HTTP request to any URL within the Navigator application prior to authentication, a bad actor could exploit this vulnerability to alter server-side session security state.
Title IBM i Improper Authentication
First Time appeared Ibm
Ibm i
Weaknesses CWE-287
CPEs cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm i
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-10-20T21:41:32.677Z

Reserved: 2026-09-18T16:03:13.170Z

Link: CVE-2026-93744

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-20T22:21:07.607

Modified: 2026-10-20T22:21:07.607

Link: CVE-2026-93744

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses