Cleartext Transmission of Sensitive Information 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
0.25% (17th percentile)

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  • Snyk IDSNYK-AMZN2023-LIBSOUP3DOC-17290070
  • published10 Jun 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

CVE-2026-5119  (opens in a new tab)
CWE-319  (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 libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext within the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept these cookies, leading to potential session hijacking or user impersonation.

CVSS Base Scores

version 3.1