CVE-2026-5119

MEDIUM

5.9

Description

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.

CVE Details

CVSS v3.1 Score5.9

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published3/30/2026

Last Modified4/1/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gnome:libsoupredhat:enterprise_linux

Weaknesses (CWE)

CWE-319

References

https://access.redhat.com/security/cve/CVE-2026-5119(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2452932(secalert@redhat.com)

https://gitlab.gnome.org/GNOME/libsoup/-/issues/502(secalert@redhat.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.