CVE-2026-8858
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
63/100
Published: 2026-06-22
Modified: 2026-10-25
First seen: 2026-10-29
Status: active
Attack Surface
Adjacent
Low Complexity
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Adjacent
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
IBM WebSphere Application Server and IBM WebSphere Application Server Liberty are vulnerable to remote code execution and denial of service in the WebSphere Web Server Plug-in component. This vulnerability can be exploited when an attacker impersonates the application server and sends crafted responses to the plug-in.