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Vulnerability in HAProxy via HTTP/3 Empty FIN Content-length Detected in 2026

A flaw in HAProxy allows an attacker to inject headers via HTTP/3 Empty FIN Content-length.

Published 13sem1 sourceNotableupdated 4sem
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The fact

This vulnerability alters the service's behavior.

The analysis was published on 04/14/2026 on Vigilance.fr.

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Auto-synthesis from 1 media source · identified on June 14, 2026
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