Eclipse WTP HTTP server header injection via request body
CVE-2026-93003 Published on October 20, 2026
NetX Duo Web HTTP server interprets request body content as HTTP header fields
The Web add-on's HTTP server searches the entire request packet for header fields instead of stopping at the end of the header section. A header field name placed in the request body is therefore reported to the server as though it were a header, which lets a client control request framing decisions it should not be able to reach.
Vulnerability Analysis
CVE-2026-93003 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a HTTP Request Smuggling Vulnerability?
When malformed or abnormal HTTP requests are interpreted by one or more entities in the data flow between the user and the web server, such as a proxy or firewall, they can be interpreted inconsistently, allowing the attacker to "smuggle" a request to one device without the other device being aware of it.
CVE-2026-93003 has been classified to as a HTTP Request Smuggling vulnerability or weakness.
Products Associated with CVE-2026-93003
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Affected Versions
Eclipse Foundation Eclipse ThreadX - NetX Duo:- Before and including 6.5.1.202602 is affected.
- Version 6.5.2.202603 is unaffected.