IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a virtual host bypass vulnerability. (CVE-2026-11549)
IBM WebSphere Application Server and WebSphere Application Server Liberty have a virtual host bypass vulnerability (CVE-2026-11549). This vulnerability allows unauthorized access by bypassing virtual host restrictions. The CVSS v3.1 base score is 6.5, indicating a medium severity level. No patch or remediation details are provided in the available data. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
CVE-2026-11549 is a vulnerability in IBM WebSphere Application Server and WebSphere Application Server Liberty that enables bypassing virtual host restrictions. This could allow an attacker to access resources or services that should be restricted by virtual host configurations. The vulnerability has a CVSS 3.1 score of 6.5 (medium severity) with network attack vector, low attack complexity, no privileges required, no user interaction, and impacts confidentiality and integrity. No vendor advisory or patch information is currently available.
Potential Impact
The vulnerability could allow an attacker to bypass virtual host restrictions, potentially leading to unauthorized access to information or modification of data within the affected IBM WebSphere Application Server environments. There is no indication of impact on availability. No known exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, review and tighten virtual host configurations and monitor for unusual access patterns related to virtual host bypass attempts.
IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a virtual host bypass vulnerability. (CVE-2026-11549)
Description
IBM WebSphere Application Server and WebSphere Application Server Liberty have a virtual host bypass vulnerability (CVE-2026-11549). This vulnerability allows unauthorized access by bypassing virtual host restrictions. The CVSS v3.1 base score is 6.5, indicating a medium severity level. No patch or remediation details are provided in the available data. There are no known exploits in the wild at this time.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11549 is a vulnerability in IBM WebSphere Application Server and WebSphere Application Server Liberty that enables bypassing virtual host restrictions. This could allow an attacker to access resources or services that should be restricted by virtual host configurations. The vulnerability has a CVSS 3.1 score of 6.5 (medium severity) with network attack vector, low attack complexity, no privileges required, no user interaction, and impacts confidentiality and integrity. No vendor advisory or patch information is currently available.
Potential Impact
The vulnerability could allow an attacker to bypass virtual host restrictions, potentially leading to unauthorized access to information or modification of data within the affected IBM WebSphere Application Server environments. There is no indication of impact on availability. No known exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, review and tighten virtual host configurations and monitor for unusual access patterns related to virtual host bypass attempts.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-c3g2-rhrj-675h
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-11549"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aade4e855bf5e2cf5ed9efc
Added to database: 09/19/2026, 01:27:04 UTC
Last enriched: 09/19/2026, 01:33:48 UTC
Last updated: 09/19/2026, 04:01:23 UTC
Views: 2
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