Vulnerability in Gnome Libsoup
CVE-2026-5119
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…
EPSS: 0.000 (2.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N.
Affected products
- Gnome Libsoup
- Red Hat Enterprise Linux 10 — versions 0:3.6.5-3.el10_2.11, 0:3.6.5-3.el10_1.11
- Red Hat Enterprise Linux 10.0 Extended Update Support — versions 0:3.6.5-3.el10_0.15
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:2.62.3-14.el8_10
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — versions 0:2.62.3-2.el8_4.9
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-life Add-on — versions 0:2.62.3-2.el8_4.9
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service — versions 0:2.62.3-3.el8_8.9
- Red Hat Enterprise Linux 8.8 Update Services For Sap Solutions — versions 0:2.62.3-3.el8_8.9
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, Mitigation, vdb-entry, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)
- secalert@redhat.com (Exploit, Issue Tracking)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2026-5119?
- CVE-2026-5119 is a medium-severity vulnerability in Gnome Libsoup, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2026-03-30.
- How severe is CVE-2026-5119?
- Medium severity. CVSS v3 base score is 5.9 out of 10.