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CVE-2026-55614 is a high-severity HTTP request smuggling vulnerability in OpenWrt's uhttpd web server on keep-alive connections. The flaw is caused by case-sensitive matching of the Transfer-Encoding header, which can lead to inconsistent interpretation of message framing when different HTTP components in the request path parse the same request differently. This parser discrepancy can desynchronize request boundaries and allow a crafted request to be interpreted as multiple requests or to cause a subsequent request on the same connection to be misframed.
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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 high-severity HTTP request smuggling vulnerability in OpenWrt uhttpd caused by case-sensitive Transfer-Encoding matching on keep-alive connections.
A high-severity HTTP request smuggling vulnerability in uhttpd caused by case-sensitive Transfer-Encoding matching on keep-alive connections.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.