Medium severity6.5NVD Advisory· Published Sep 14, 2026· Updated Oct 22, 2026
CVE-2026-15396
CVE-2026-15396
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.
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Affected products
2- Range: 17.0.0.3 through 26.0.0.8
- Range: 8.5, 9.0
Patches
Vulnerability mechanics
References
2News mentions
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