CVE-2026-1760 MEDIUM

CVE-2026-1760: Libsoup: soupserver: denial of service via http request smuggling

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-444
Published February 2, 2026
Last update March 19, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

A flaw was found in SoupServer. This HTTP request smuggling vulnerability occurs because SoupServer improperly handles requests that combine Transfer-Encoding: chunked and Connection: keep-alive headers. A remote, unauthenticated client can exploit this by sending specially crafted requests, causing SoupServer to fail to close the connection as required by RFC 9112. This allows the attacker to smuggle additional requests over the persistent connection, leading to unintended request processing and potential denial-of-service (DoS) conditions.

Key dates

02Disclosure timeline

February 2, 2026 CVE published
March 19, 2026 Record updated