CVE-2005-2091

no score yetEPSS 1.5%

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."

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
Published: 2005-07-05
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

ibm:websphere_application_server

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

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