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Red Hat Enterprise Linux 10 CVE-2026-5119

| EUVD-2026-17062 MEDIUM
Cleartext Transmission of Sensitive Information (CWE-319)
2026-03-30 redhat
Information Disclosure Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 9
5.9
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.9 MEDIUM
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
SUSE
MEDIUM
qualitative
Red Hat
5.9 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

Lifecycle Timeline

4
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 30, 2026 - 06:30 euvd
EUVD-2026-17062
Analysis Generated
Mar 30, 2026 - 06:30 vuln.today
CVE Published
Mar 30, 2026 - 05:35 nvd
MEDIUM 5.9

DescriptionCVE.org

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.

AnalysisAI

Libsoup transmits sensitive session cookies in cleartext within HTTP CONNECT requests when establishing HTTPS tunnels through configured HTTP proxies, allowing network-positioned attackers or malicious proxies to intercept and hijack user sessions. The vulnerability affects Red Hat Enterprise Linux versions 6 through 10 and carries a CVSS 5.9 score with high confidentiality impact; no public exploit code or confirmed active exploitation has been identified at the time of analysis.

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Vulnerability AssessmentAI

Risk Assessment The CVSS 5.9 score reflects moderate risk with high confidentiality impact but limited exploitability constraints: the attack vector is network-based and requires no privileges, but attack complexity is high and user interaction is required, limiting opportunistic exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker positioned on the network between a Linux system and its configured HTTP proxy (e.g., an untrusted Wi-Fi network, compromised ISP router, or malicious corporate proxy) observes HTTPS connection attempts by a user or application. When the client initiates an HTTPS tunnel via HTTP CONNECT, the attacker captures the cleartext HTTP CONNECT request containing the session cookies transmitted by libsoup. …
Remediation Apply the security patch released by Red Hat for your specific RHEL version via the package management system (yum or dnf). … Detailed patch versions, workarounds, and compensating controls in full report.
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Vendor StatusVendor

Debian

Bug #1132331
libsoup2.4
Release Status Fixed Version Urgency
bullseye vulnerable 2.72.0-2 -
bullseye (security) vulnerable 2.72.0-2+deb11u3 -
bookworm vulnerable 2.74.3-1+deb12u1 -
trixie vulnerable 2.74.3-10.1 -
(unstable) fixed (unfixed) -
libsoup3
Release Status Fixed Version Urgency
bookworm vulnerable 3.2.3-0+deb12u2 -
trixie vulnerable 3.6.5-3 -
forky, sid vulnerable 3.6.6-1 -
(unstable) fixed (unfixed) -

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Micro 5.2 Fixed

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CVE-2026-5119 vulnerability details – vuln.today
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