Cleartext Transmission of Sensitive Information Affecting libsoup3 package, versions <0:3.6.5-3.el10_2.11


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-ALMALINUX10-LIBSOUP3-16686884
  • published14 May 2026
  • disclosed6 May 2026

Introduced: 6 May 2026

CVE-2026-5119  (opens in a new tab)
CWE-319  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 libsoup3 to version 0:3.6.5-3.el10_2.11 or higher.
This issue was patched in ALSA-2026:19143.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsoup3 package and not the libsoup3 package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 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