Path Traversal

zrok is vulnerable to Path Traversal. The vulnerability is due to failure to prevent symlink traversal in the WebDAV drive backend, which allows a remote attacker to access symbolic links pointing outside the shared root and read or, where permitted, modify arbitrary files on the host filesystem...

EUVD-2026-28511

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.2, the zrok WebDAV drive backend davServer.Dir restricts path traversal through lexical normalization but does not prevent symlink following. When a symbolic link inside the shared DriveRoot points to a...

CVE-2026-42275

The CVE-2026-42275 issue affects zrok’s WebDAV drive backend (davServer.Dir) where symbolic links inside the shared DriveRoot are not prevented from pointing outside the root. This allows remote WebDAV clients to read files and, on shares with lax OS permissions, overwrite files anywhere on the h...

CVE-2026-42275 zrok: WebDAV drive backend follows symlinks outside DriveRoot, enabling host filesystem read/write

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.2, the zrok WebDAV drive backend davServer.Dir restricts path traversal through lexical normalization but does not prevent symlink following. When a symbolic link inside the shared DriveRoot points to a...

CVE-2026-42275

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.2, the zrok WebDAV drive backend davServer.Dir restricts path traversal through lexical normalization but does not prevent symlink following. When a symbolic link inside the shared DriveRoot points to a...

CVE-2026-42275 zrok: WebDAV drive backend follows symlinks outside DriveRoot, enabling host filesystem read/write

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.2, the zrok WebDAV drive backend davServer.Dir restricts path traversal through lexical normalization but does not prevent symlink following. When a symbolic link inside the shared DriveRoot points to a...

zrok 路径遍历漏洞

Zrok is a secure internet sharing tool developed by OpenZiti. Versions of Zrok prior to 2.0.2 contained a path traversal vulnerability. This vulnerability stemmed from the WebDAV driver’s backend, which restricted path traversal through lexical normalization but did not prevent symbolic links fro...

CVE-2026-40303

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, endpoints.GetSessionCookie parses an attacker-supplied cookie chunk count and calls makestring, count with no upper bound before any token validation occurs. The function is reached on every request t...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the endpoints.GetSessionCookie function. An attacker can exhaust system memory resources by sending specially crafted requests containing a large cookie chunk count, resulting in unbounded...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the endpoints.GetSessionCookie function. An attacker can exhaust system memory resources by sending specially crafted requests containing a large cookie chunk count, resulting in unbounded...

CVE-2026-40303

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, endpoints.GetSessionCookie parses an attacker-supplied cookie chunk count and calls makestring, count with no upper bound before any token validation occurs. The function is reached on every request t...

CVE-2026-40304 zrok's broken ownership check in DELETE /api/v2/unaccess allows non-admin to delete global frontend records

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, the unaccess handler controller/unaccess.go contains a logical error in its ownership guard: when a frontend record has environmentid = NULL the marker for admin-created global frontends, the conditio...

CVE-2026-40304

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, the unaccess handler controller/unaccess.go contains a logical error in its ownership guard: when a frontend record has environmentid = NULL the marker for admin-created global frontends, the conditio...

CVE-2026-40304 zrok's broken ownership check in DELETE /api/v2/unaccess allows non-admin to delete global frontend records

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, the unaccess handler controller/unaccess.go contains a logical error in its ownership guard: when a frontend record has environmentid = NULL the marker for admin-created global frontends, the conditio...

CVE-2026-40303 zrok allows unauthenticated DoS via unbounded memory allocation in striped session cookie parsing

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, endpoints.GetSessionCookie parses an attacker-supplied cookie chunk count and calls makestring, count with no upper bound before any token validation occurs. The function is reached on every request t...

CVE-2026-40303 zrok allows unauthenticated DoS via unbounded memory allocation in striped session cookie parsing

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, endpoints.GetSessionCookie parses an attacker-supplied cookie chunk count and calls makestring, count with no upper bound before any token validation occurs. The function is reached on every request t...

CVE-2026-40303

CVE-2026-40303 (zrok) affects zrok prior to 2.0.1. The flaw is in endpoints.GetSessionCookie, which parses an attacker-supplied cookie chunk count and calls make([]string, count) without an upper bound before token validation. This enables unauthenticated remote attackers to trigger gigabyte-scal...

CVE-2026-40303 zrok allows unauthenticated DoS via unbounded memory allocation in striped session cookie parsing

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, endpoints.GetSessionCookie parses an attacker-supplied cookie chunk count and calls makestring, count with no upper bound before any token validation occurs. The function is reached on every request t...

CVE-2026-40302 zrok has reflected XSS in GitHub OAuth callback via unsanitized refreshInterval error rendering

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, the proxyUi template engine uses Go's text/template which performs no HTML escaping instead of html/template. The GitHub OAuth callback handlers in both publicProxy and dynamicProxy embed the...

CVE-2026-40302

CVE-2026-40302 affects zrok prior to v2.0.1. The proxyUi template engine used Go's text/template (no HTML escaping), leading to reflected XSS via an attacker-controlled refreshInterval error rendered in the GitHub OAuth callback. An attacker can send a crafted login URL; after OAuth completes, th...