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CVE-2026-1539

Estado: AnalizadaMedia (5.8)—

A flaw was found in the libsoup HTTP library that can cause proxy authentication credentials to be sent to unintended destinations. When handling HTTP redirects, libsoup removes the Authorization header but does not remove the Proxy-Authorization header if the request is redirected to a different host. As a result, sensitive proxy credentials may be leaked to third-party servers. Applications using libsoup for HTTP communication may unintentionally expose proxy authentication data.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Gnome — LibsoupRedhat — Enterprise Linux

CWE

Referencias

JSON original (NVD)

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          "version": "2.0.3",
          "timestamp": "2026-01-28T16:09:01.060307Z"
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  "published": "2026-01-28T16:16:16.687",
  "references": [
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      "url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/489",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "value": "CWE-201"
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      "value": "A flaw was found in the libsoup HTTP library that can cause proxy authentication credentials to be sent to unintended destinations. When handling HTTP redirects, libsoup removes the Authorization header but does not remove the Proxy-Authorization header if the request is redirected to a different host. As a result, sensitive proxy credentials may be leaked to third-party servers. Applications using libsoup for HTTP communication may unintentionally expose proxy authentication data."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en la librería HTTP libsoup que puede causar que las credenciales de autenticación de proxy se envíen a destinos no deseados. Al manejar redirecciones HTTP, libsoup elimina el encabezado Authorization pero no elimina el encabezado Proxy-Authorization si la solicitud es redirigida a un host diferente. Como resultado, las credenciales de proxy sensibles pueden filtrarse a servidores de terceros. Las aplicaciones que usan libsoup para comunicación HTTP pueden exponer involuntariamente datos de autenticación de proxy."
    }
  ],
  "lastModified": "2026-06-17T10:16:01.770",
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