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...

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...

CVE-2026-40394

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...

CVE-2026-40394

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...

CVE-2026-40394

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...

CVE-2026-40394

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...

CVE-2026-40394

Varnish Cache 9 before 9.0.1 and Varnish Enterprise before 6.0.16r11 are affected by a workspace overflow during HTTP/2 session upgrade. The vulnerability arises when the HTTP/2 upgrade path repurposes an HTTP/1 request as stream zero and allocates a buffer to reserve space for frames, which can ...

PT-2026-32183

Name of the Vulnerable Software and Affected Versions Varnish Cache versions prior to 9.0.1 Varnish Enterprise versions prior to 6.0.16r11 Description Varnish Cache and Varnish Enterprise are susceptible to a denial of service daemon panic due to a workspace overflow. This occurs when handling...

PT-2026-32184

Name of the Vulnerable Software and Affected Versions Varnish Enterprise versions prior to 6.0.16r12 Description Varnish Enterprise versions before 6.0.16r12 are susceptible to a denial of service daemon panic due to a workspace overflow when handling shared VCL. The headerplus.write req0 functio...

Varnish Cache和Varnish Enterprise 安全漏洞

Varnish Cache and Varnish Enterprise are both products from the Varnish company. Varnish Cache is a set of reverse website caching servers. Varnish Enterprise is a high-performance caching software designed for handling high-traffic and optimizing businesses. There were security vulnerabilities i...

Varnish Cache 安全漏洞

Varnish Cache is a set of reverse website caching servers developed by the Varnish company. Versions of Varnish Cache prior to 9.0.1 contained security vulnerabilities. These vulnerabilities stemmed from a situation where, after a timeoutlinger period, malicious clients might send HTTP/1 requests...

Varnish Enterprise 安全漏洞

Varnish Enterprise is a high-performance caching software developed by the Varnish company. It is designed for handling high-traffic scenarios and optimizing business operations. Versions of Varnish Enterprise prior to 6.0.16r12 contained security vulnerabilities. These vulnerabilities stemmed fr...

PT-2026-32185

Name of the Vulnerable Software and Affected Versions Varnish Cache versions prior to 9.0.1 Description Varnish Cache 9 before 9.0.1 is susceptible to a denial of service due to a workspace overflow, potentially leading to a daemon panic. A malicious client can exploit this by sending an HTTP/1...

SUSE CVE-2026-34475

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...

CVE-2026-34475

A flaw was found in Varnish Cache and Varnish Enterprise. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/1.1 requests with a path of / in the URL. This mishandling of URLs, specifically in unchecked req.url scenarios, could lead to cache poisoning, where an...

randstad-linux-azure-architect-poc

Randstad Azure Linux Architect — POC GitHub: https://gith...

Linux Distros Unpatched Vulnerability : CVE-2026-34475

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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,...

EUVD-2026-16801

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...

CVE-2026-34475

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...

DEBIAN-CVE-2026-34475

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...