CVE-2026-40395

CVE-2026-40395 affects Varnish Enterprise prior to 6.0.16r12. A workspace overflow can occur in the vmod_headerplus module when header fields are excessive in a modified req0, causing a daemon panic and Denial of Service. Details in multiple sources describe the root cause as the headerplus.write...

EUVD-2021-15219

Malware in sbrugna...

varnish: HTTP/1 request smuggling vulnerability

A flaw was found in Varnish. This flaw allows an attacker to carry out a request smuggling attack on HTTP/1 connections on Varnish cache servers. This smuggled request goes through the usual Varnish Configuration Language VCL processing since the Varnish server treats it as an additional request...

varnish: HTTP/1 request smuggling vulnerability

A flaw was found in Varnish. This flaw allows an attacker to carry out a request smuggling attack on HTTP/1 connections on Varnish cache servers. This smuggled request goes through the usual Varnish Configuration Language VCL processing since the Varnish server treats it as an additional request...

varnish: HTTP/1 request smuggling vulnerability

A flaw was found in Varnish. This flaw allows an attacker to carry out a request smuggling attack on HTTP/1 connections on Varnish cache servers. This smuggled request goes through the usual Varnish Configuration Language VCL processing since the Varnish server treats it as an additional request...

CVE-2021-36740

A flaw was found in Varnish. The Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. As a result, this flaw allows the information on the Varnish cache to be poisoned. The highest threat from this...

CVE-2021-28543

Varnish varnish-modules before 0.17.1 allows remote attackers to cause a denial of service daemon restart in some configurations. This does not affect organizations that only install the Varnish Cache product; however, it is common to install both Varnish Cache and varnish-modules. Specifically, ...

Null pointer dereference

Varnish varnish-modules before 0.17.1 allows remote attackers to cause a denial of service daemon restart in some configurations. This does not affect organizations that only install the Varnish Cache product; however, it is common to install both Varnish Cache and varnish-modules. Specifically, ...

CVE-2021-28543

Varnish varnish-modules before 0.17.1 allows remote attackers to cause a denial of service daemon restart in some configurations. This does not affect organizations that only install the Varnish Cache product; however, it is common to install both Varnish Cache and varnish-modules. Specifically, ...