Security Advisory

CVE-2026-4271

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-17 11:14:21

Last updated 2026-05-19 21:30:20

Assigner redhat

State PUBLISHED

Description

A flaw was found in libsoup, a library for handling HTTP requests. This vulnerability, known as a Use-After-Free, occurs in the HTTP/2 server implementation. A remote attacker can exploit this by sending specially crafted HTTP/2 requests that cause authentication failures. This can lead to the application attempting to access memory that has already been freed, potentially causing application instability or crashes, resulting in a Denial of Service (DoS).

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