The purpose of this module is to give you a fine-grained control over a URL's
query-string in Varnish Cache. It's possible to remove the query-string, clean
it, sort its parameters or filter it to only keep a subset of them.
This can greatly improve your hit ratio and efficiency with Varnish, because
by default two URLs with the same path but different query-strings are also
different. This is what the RFCs mandate but probably not what you usually
want for your web site or application.
A query-string is just a character string starting after a question mark in a
URL. But in a web context, it is usually a structured key/values store encoded
with the `application/x-www-form-urlencoded' media type. This module deals
with this kind of query-strings.
Update Information:
Update to latest 7.7.x release available, a security release. Includes fixes for VSV00017 aka CVE-2025-8671, aAdded patches for for VSV00018 aka CVE-2026-34475, added patches for for VSV00019.
* Fri Jun 19 2026 Dridi Boukelmoune
Fedora Update Notification
FEDORA-2026-7f36ec4c65
2026-07-01 01:21:48.846180+00:00
Name : vmod-querystring
Product : Fedora 43
Version : 2.0.3
Release : 11.fc43
URL : https://github.com/dridi/libvmod-querystring
Summary : QueryString module for Varnish Cache
Description :
The purpose of this module is to give you a fine-grained control over a URL's
query-string in Varnish Cache. It's possible to remove the query-string, clean
it, sort its parameters or filter it to only keep a subset of them.
This can greatly improve your hit ratio and efficiency with Varnish, because
by default two URLs with the same path but different query-strings are also
different. This is what the RFCs mandate but probably not what you usually
want for your web site or application.
A query-string is just a character string starting after a question mark in a
URL. But in a web context, it is usually a structured key/values store encoded
with the `application/x-www-form-urlencoded' media type. This module deals
with this kind of query-strings.
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-7f36ec4c65' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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