CVE-2026-8633: CWE-94 Improper Control of Generation of Code ('Code Injection') in IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty
CVE-2026-8633 is a critical remote code execution vulnerability in IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty versions 8.5 and 9.0. The vulnerability arises from improper control of code generation (CWE-94) and can be triggered via a specially crafted request. The CVSS score of 9.8 reflects the high impact on confidentiality, integrity, and availability without requiring privileges or user interaction. No official patch or remediation guidance is currently available from IBM. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty versions 8.5 and 9.0 contain a vulnerability classified as CWE-94 (Improper Control of Generation of Code), which allows remote attackers to execute arbitrary code by sending specially crafted requests to the Web Server Plug-ins. This vulnerability enables unauthenticated attackers to achieve remote code execution with high impact on system confidentiality, integrity, and availability. The vulnerability is tracked as CVE-2026-8633 with a CVSS v3.1 score of 9.8, indicating critical severity. As of the published date, no official patch or remediation level has been provided by IBM, and no exploits have been reported in the wild.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code on affected systems without authentication, potentially leading to full compromise of the WebSphere Application Server environment. The impact includes complete loss of confidentiality, integrity, and availability of the affected system components.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until an official fix is released, organizations should consider applying temporary mitigations such as restricting access to the Web Server Plug-ins from untrusted networks and monitoring for suspicious requests targeting these components.
CVE-2026-8633: CWE-94 Improper Control of Generation of Code ('Code Injection') in IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty
Description
CVE-2026-8633 is a critical remote code execution vulnerability in IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty versions 8.5 and 9.0. The vulnerability arises from improper control of code generation (CWE-94) and can be triggered via a specially crafted request. The CVSS score of 9.8 reflects the high impact on confidentiality, integrity, and availability without requiring privileges or user interaction. No official patch or remediation guidance is currently available from IBM. There are no known exploits in the wild at this time.
CVSS v3.1
Score 9.8critical
Affected software
pkg:github/ibm/web-server-plugins-websphereRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty versions 8.5 and 9.0 contain a vulnerability classified as CWE-94 (Improper Control of Generation of Code), which allows remote attackers to execute arbitrary code by sending specially crafted requests to the Web Server Plug-ins. This vulnerability enables unauthenticated attackers to achieve remote code execution with high impact on system confidentiality, integrity, and availability. The vulnerability is tracked as CVE-2026-8633 with a CVSS v3.1 score of 9.8, indicating critical severity. As of the published date, no official patch or remediation level has been provided by IBM, and no exploits have been reported in the wild.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code on affected systems without authentication, potentially leading to full compromise of the WebSphere Application Server environment. The impact includes complete loss of confidentiality, integrity, and availability of the affected system components.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until an official fix is released, organizations should consider applying temporary mitigations such as restricting access to the Web Server Plug-ins from untrusted networks and monitoring for suspicious requests targeting these components.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-05-14T19:03:34.571Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a15e03d891d628fdc67d994
Added to database: 05/26/2026, 18:02:37 UTC
Last enriched: 06/02/2026, 21:21:12 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 171
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