CVE-2005-2091

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2005-07-05 · updated 2026-06-16

Description

IBM WebSphere 5.1 and WebSphere 5.0 allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes WebSphere to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."

Affected products

IBM WebSphere Application Server: 5.0, 5.1.0

References

http://seclists.org/lists/bugtraq/2005/Jun/0025.html
http://securitytracker.com/id?1014367
http://www.securiteam.com/securityreviews/5GP0220G0U.html
http://www.watchfire.com/resources/HTTP-Request-Smuggling.pdf
https://exchange.xforce.ibmcloud.com/vulnerabilities/42898
http://seclists.org/lists/bugtraq/2005/Jun/0025.html
http://securitytracker.com/id?1014367
http://www.securiteam.com/securityreviews/5GP0220G0U.html
http://www.watchfire.com/resources/HTTP-Request-Smuggling.pdf
https://exchange.xforce.ibmcloud.com/vulnerabilities/42898

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