CVE-2026-88829

A flaw was found in BusyBox httpd's reverse proxy feature. When the proxy is configured to forward requests matching a URL prefix to a backend server, only the first HTTP request on a TCP connection has its path rewritten. An attacker can send a pipelined second request that is relayed verbatim to the backend, bypassing the configured path restrictions. This allows accessing arbitrary paths on the backend server that were not intended to be exposed through the proxy.
Configurations

No configuration.

History

14 Oct 2026, 10:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-14 10:17

Updated : 2026-10-15 16:33


NVD link : CVE-2026-88829

Mitre link : CVE-2026-88829

CVE.ORG link : CVE-2026-88829


JSON object : View

Products Affected

No product.

CWE
CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')