CVE-2026-34475 MEDIUM

CVE-2026-34475

Vendor Varnish-Software
Product Varnish Cache
Weakness CWE-180
Published March 27, 2026
Last update March 27, 2026
View on NVD All CVEs

CVSS base score

5.4/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 27, 2026 CVE published
March 27, 2026 Record updated