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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-15634

IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty Request Smuggling

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Status
Published
Published
Updated
Assigning organization
ibm

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 are vulnerable to HTTP request smuggling, caused by improper parsing of the HTTP transfer-encoding request header. By sending a specially crafted HTTP transfer-encoding request header, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

IBM WebSphere Application Server

Default version status: unaffected

  • 9.0affected
  • 8.5affected

IBM WebSphere Application Server - Liberty

  • 17.0.0.3 to ≤ 26.0.0.5affected

References