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CVE-2026-34475

Full vulnerability record from the local CVENow database.

Description

Varnish Cache before 8.0.1 and Varnish Enterprise before 6.0.16r12, in certain unchecked req.url scenarios, mishandle URLs with a path of / for HTTP/1.1, potentially leading to cache poisoning or authentication bypass.

Severity
CRITICAL
CVSS score
9.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-03-27 20:16:36.390000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
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  "id": "CVE-2026-34475",
  "sourceIdentifier": "[email protected]",
  "published": "2026-03-27T20:16:36.390",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Analyzed",
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    },
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      "value": "Varnish Cache anterior a la versión 8.0.1 y Varnish Enterprise anterior a la versión 6.0.16r12, en ciertos escenarios de req.url no verificados, manejan incorrectamente las URL con una ruta de / para HTTP/1.1, lo que podría llevar a envenenamiento de caché u omisión de autenticación."
    }
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      "url": "https://vinyl-cache.org/security/VSV00018.html",
      "source": "[email protected]",
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}