HTTP Request Smuggling Affecting libsoup3-doc package, versions <0:3.6.6-58.amzn2023


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.42% (34th percentile)

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  • Snyk IDSNYK-AMZN2023-LIBSOUP3DOC-17290075
  • published10 Jun 2026
  • disclosed2 Feb 2026

Introduced: 2 Feb 2026

CVE-2026-1760  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 libsoup3-doc to version 0:3.6.6-58.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1778.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsoup3-doc package and not the libsoup3-doc package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1