CVE-2026-39425 MaxKB: Stored XSS via Unsanitized html_rander Tags in Markdown Rendering

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability that allows authenticated users to inject arbitrary HTML and JavaScript into the Application prologue Opening Remarks field by wrapping malicious payloads in tags...

CVE-2026-39425

CVE-2026-39425 affects MaxKB (enterprise AI assistant). Versions 2.7.1 and earlier allow Stored XSS via unsanitized tags in the Application prologue, stored through /admin/api/workspace/{workspace_id}/application and rendered by the frontend via innerHTML, enabling persistent XSS and potential s...

CVE-2026-39421 MaxKB: Sandbox escape via ctypes and unhooked SYS_pkey_mprotect

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a sandbox escape vulnerability in the ToolExecutor component. By leveraging Python's ctypes library to execute raw system calls, an authenticated attacker with workspace privileges can bypass the LDPRELOAD-based...

CVE-2026-39421

CVE-2026-39421 affects MaxKB (versions 2.7.1 and earlier). The sandbox escape occurs in ToolExecutor via Python ctypes calling raw syscalls to bypass LD_PRELOAD sandbox.so, enabling arbitrary code execution through direct kernel syscalls and potential full container/network compromise. The librar...

EUVD-2026-22180

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a sandbox escape vulnerability in the ToolExecutor component. By leveraging Python's ctypes library to execute raw system calls, an authenticated attacker with workspace privileges can bypass the LDPRELOAD-based...

PT-2026-32584

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability that allows authenticated users to inject arbitrary HTML and JavaScript into the Application prologue Opening Remarks field by wrapping malicious payloads in tags...

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-2026-40394

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...

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...

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...

EUVD-2026-21740

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-2026-40396

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...

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-2026-40394

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...

DEBIAN-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-2026-40396

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...