CVE-2026-5119
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
8.2
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-03-30 07:15:58.350000
Last modified
2026-11-05 22:18:49.413000
View original CVE JSON
{
"id": "CVE-2026-5119",
"sourceIdentifier": "[email protected]",
"published": "2026-03-30T07:15:58.350",
"lastModified": "2026-11-05T22:18:49.413",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Se encontró una vulnerabilidad en libsoup. Al establecer túneles HTTPS a través de un proxy HTTP configurado, las cookies de sesión sensibles se transmiten en texto claro dentro de la solicitud HTTP CONNECT inicial. Un atacante posicionado en la red o un proxy HTTP malicioso puede interceptar estas cookies, lo que podría conducir al secuestro potencial de la sesión o a la suplantación de identidad del usuario."
}
],
"affected": [
{
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}