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CVE-2026-55613 is a moderate HTTP request desynchronization vulnerability in OpenWrt's uhttpd web server affecting ubus POST request handling on keep-alive connections. The flaw is triggered when a ubus POST body encounters a parse error, causing request parsing state to become desynchronized rather than cleanly terminating or isolating the malformed request. This can break message boundary handling between successive HTTP requests on the same connection and create a request smuggling condition in front-end/back-end or client/server parsing flows.
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No public exploit code observed for this vulnerability.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A moderate HTTP request smuggling or desynchronization issue in OpenWrt uhttpd involving ubus POST body parse-error desync on keep-alive connections.
A moderate HTTP request smuggling/desynchronization vulnerability in uhttpd involving ubus POST body parse-error handling.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.