CVE-2026-15412

IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty Open Redirect

Published Sep 14, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Description

IBM WebSphere Application Server 8.5 and 9.0, and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.

Analysis

Technical impact

IBM WebSphere Application Server version 8.5 and 9.0, and the Liberty profile from 17.0.0.3 to 26.0.0.8, prior to the recommended fix packs (8.5.5.31, 9.0.5.29, and 26.0.0.9) contain an open‑redirect flaw classified as CWE‑601. A remote attacker can craft a URL that, when visited by a user, shows a spoofed address bar while redirecting the browser to a malicious site. This vulnerability enables phishing attacks that may lead to theft of sensitive information or facilitate additional attacks against the victim.

Affected Systems

Affected products are IBM WebSphere Application Server 9.0 and 8.5, including the Liberty profile. Vulnerable releases include IBM WebSphere Application Server versions from 9.0.0.0 through 9.0.5.28 and from 8.5.0.0 through 8.5.5.30, and IBM WebSphere Application Server Liberty versions from 17.0.0.3 through 26.0.0.8.

Risk and Exploitability

The vulnerability has a CVSS score of 6.5 and is not listed in the CISA KEV catalog. The EPSS score of 0.0022 (less than 1%) indicates a very low exploitation probability. The likely attack vector is remote, requiring only that an end‑user click a malicious link; no privileged access or technical exploitation is required beyond forging the URL. Consequently, the risk is moderate, driven mainly by user interaction and the potential to steal credentials or deliver malware via phishing.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

IBM

WebSphere Application Server

unaffected

Version	Status	Constraints
`9.0`	affected	—
`8.5`	affected	—

IBM

WebSphere Application Server - Liberty

affected

Version	Status	Constraints
`17.0.0.3`	affected	≤ 26.0.0.5

No data.

Vendor Product Versions

Ibm

Websphere Application Server

Version	Status	Scheme	Platform
`9.0`	affected	generic	—
`8.5`	affected	generic	—

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerabilities now by applying the fix pack(s) listed below. For IBM WebSphere Application Server traditional: For V9.0.0.0 through 9.0.5.28: · Apply Fix Pack 9.0.5.29 SB0030823 (availability September 2026) or later fix pack. For V8.5.0.0 through 8.5.5.30: · Apply Fix Pack 8.5.5.31 https://www.ibm.com/support/pages/node/7285869 (availability September 2026) or later fix pack. For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.8: · Apply Liberty Fix Pack 26.0.0.9 https://www.ibm.com/support/pages/node/7285875 (availability September 2026) or later fix pack.

OpenCVE Recommended Actions

Apply IBM WebSphere Application Server fix pack 9.0.5.29 or later to close the open‑redirect defect
Apply IBM WebSphere Application Server fix pack 8.5.5.31 or later to address the same flaw
Apply IBM WebSphere Application Server Liberty fix pack 26.0.0.9 or later to address the open‑redirect defect
Deploy web‑application security controls, such as a WAF, to detect and block suspicious redirect URLs, and educate users on phishing risks

Generated by OpenCVE AI on October 23, 2026 at 08:15 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.338% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact partial

References

Link	Providers
https://www.ibm.com/support/pages/node/7286610
https://www.ibm.com/support/pages/node/7286611

History

Oct 23, 2026 12:45 AM Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

Type	Values Removed	Values Added
Description	IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.	IBM WebSphere Application Server 8.5 and 9.0, and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.
Title	IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities	IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty Open Redirect
First Time appeared		Ibm websphere Application Server Liberty
CPEs		cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:::::::* cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.8:::::::*
Vendors & Products		Ibm websphere Application Server Liberty
References		https://www.ibm.com/support/pages/node/7286611

Sep 15, 2026 6:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Sep 14, 2026 9:00 PM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.
Title		IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
First Time appeared		Ibm Ibm websphere Application Server
Weaknesses		CWE-601
CPEs		cpe:2.3:a:ibm:websphere_application_server:8.5.0:::::::* cpe:2.3:a:ibm:websphere_application_server:8.5:::::::* cpe:2.3:a:ibm:websphere_application_server:9.0.0:::::::* cpe:2.3:a:ibm:websphere_application_server:9.0:::::::*
Vendors & Products		Ibm Ibm websphere Application Server
References		https://www.ibm.com/support/pages/node/7286610
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'}`