CVE-2026-50052

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

CVE-2026-50052

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

EUVD-2026-34066

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

CVE-2026-50052

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

Linux Distros Unpatched Vulnerability : CVE-2026-50052

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack...

Varnish Cache和Vinyl Cache 环境问题漏洞

Varnish Cache is a set of reverse website caching servers provided by the Varnish company. Vinyl Cache is a high-performance HTTP reverse proxy and web application caching acceleration platform offered by the Vinyl Cache company. Versions of Vinyl Cache prior to 9.0.1 and Varnish Cache prior to...

[SECURITY] [DSA 6303-1] varnish security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6303-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 27, 2026 https://www.debian.org/security/faq -...

FreeBSD : Vinyl/Varnish -- HTTP/2 parsing deficiency (f0f4bb64-52c6-11f1-a1c0-0050569f0b83)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the f0f4bb64-52c6-11f1-a1c0-0050569f0b83 advisory. Vinyl Development Team reports: A deficiency in HTTP/2 request parsing can be exploited to launch a...

SUSE CVE-2017-12425

An issue was discovered in Varnish HTTP Cache 4.0.1 through 4.0.4, 4.1.0 through 4.1.7, 5.0.0, and 5.1.0 through 5.1.2. A wrong if statement in the varnishd source code means that particular invalid requests from the client can trigger an assert, related to an Integer Overflow. This causes the...

Unity Linux 20.1070e Security Update: varnish (UTSA-2026-017377)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017377 advisory. In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise Cache Plus 4.1.x before 4.1.11r6 and 6.0.x before...

Exploit for Incorrect Behavior Order: Validate Before Canonicalize in Varnish-Software Varnish_Enterprise

way2poccve-2026-34475 CVE-2026-34475 — Nuclei Detection Temp...

Varnish Nuclei Detection Templates

This repository has two-stage Nuclei detection for CVE-2026-34475. It can fingerprint vulnerable Varnish instances, verify cache-key collision behavior, and confirm exploitability via VCL inspection, without triggering the bug...

Linux Distros Unpatched Vulnerability : CVE-2026-40396

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Varnish Cache 9 before 9.0.1 allows a workspace overflow denial of service daemon panic after timeoutlinger. A malicious client could send an HTTP/1 request, wa...

CVE-2026-40396

A flaw was found in Varnish Cache. A malicious client can exploit a 'workspace overflow' vulnerability by sending an HTTP/1 request, waiting for the session to release its worker thread, and then resuming traffic with multiple requests to trigger a pipelining operation. This can lead to a workspa...

CVE-2026-40394

A flaw was found in Varnish Cache and Varnish Enterprise. A remote attacker can trigger a denial of service by sending specific amounts of prefetched data during an HTTP/2 session upgrade. This vulnerability, known as a "workspace overflow," occurs when the system attempts to allocate a buffer,...

CVE-2026-40395

Varnish Enterprise before 6.0.16r12 allows a "workspace overflow" denial of service daemon panic for shared VCL. The headerplus.writereq0 function from vmodheaderplus updates the underlying req0, which is normally the original read-only request from which req is derived readable and writable from...

Linux Distros Unpatched Vulnerability : CVE-2026-40395

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Varnish Enterprise before 6.0.16r12 allows a workspace overflow denial of service daemon panic for shared VCL. The headerplus.writereq0 function from...

Linux Distros Unpatched Vulnerability : CVE-2026-40394

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Varnish Cache 9 before 9.0.1 and Varnish Enterprise before 6.0.16r11 allows a workspace overflow denial of service daemon panic for certain amounts of prefetche...

EUVD-2026-21738

Varnish Cache 9 before 9.0.1 and Varnish Enterprise before 6.0.16r11 allows a "workspace overflow" denial of service daemon panic for certain amounts of prefetched data. The setup of an HTTP/2 session starts with a speculative HTTP/1 transport, and upon upgrading to h2 the HTTP/1 request is...

EUVD-2026-21742

Varnish Cache 9 before 9.0.1 allows a "workspace overflow" denial of service daemon panic after timeoutlinger. A malicious client could send an HTTP/1 request, wait long enough until the session releases its worker thread timeoutlinger and resume traffic before the session is closed timeoutidle...