CVE-2026-5119

Published: Mar 30, 2026 Last Modified: Mar 30, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,9
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: low
Availability: none

Description

AI Translation Available

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.

319

Cleartext Transmission of Sensitive Information

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality
Potential Impacts:
Read Application Data Modify Files Or Directories Other
Applicable Platforms
Technologies: Cloud Computing, ICS/OT, Mobile, Not Technology-Specific, System on Chip, Test/Debug Hardware
Likelihood of Exploit: High
View CWE Details
https://access.redhat.com/security/cve/CVE-2026-5119
https://access.redhat.com/security/cve/CVE-2026-5119
https://bugzilla.redhat.com/show_bug.cgi?id=2452932
https://bugzilla.redhat.com/show_bug.cgi?id=2452932
https://gitlab.gnome.org/GNOME/libsoup/-/issues/502
https://gitlab.gnome.org/GNOME/libsoup/-/issues/502