Incorrect Behavior Order: Validate Before Canonicalize Affecting varnish package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.2% (11th percentile)

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  • Snyk IDSNYK-DEBIAN11-VARNISH-15805889
  • published29 Mar 2026
  • disclosed27 Mar 2026

Introduced: 27 Mar 2026

CVE-2026-34475  (opens in a new tab)
CWE-180  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 varnish.

NVD Description

Note: Versions mentioned in the description apply only to the upstream varnish package and not the varnish package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1