CVE-2026-40302

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-2026-40304

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-2026-42275

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...

GHSA-C656-JCX2-7PQJ zrok copy writes attacker-controlled WebDAV paths outside the destination root

Summary Alice runs zrok2 copy from a WebDAV or zrok drive controlled by Bob into a local filesystem target. Bob returns a DAV href such as /../outside.txt. The sync pipeline stores that path in the source inventory and passes it to FilesystemTarget.WriteStream, which joins it with the target root...

zrok copy writes attacker-controlled WebDAV paths outside the destination root

Summary Alice runs zrok2 copy from a WebDAV or zrok drive controlled by Bob into a local filesystem target. Bob returns a DAV href such as /../outside.txt. The sync pipeline stores that path in the source inventory and passes it to FilesystemTarget.WriteStream, which joins it with the target root...

PT-2026-41960

Summary Alice runs zrok2 copy from a WebDAV or zrok drive controlled by Bob into a local filesystem target. Bob returns a DAV href such as /../outside.txt. The sync pipeline stores that path in the source inventory and passes it to FilesystemTarget.WriteStream, which joins it with the target root...

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

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...

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...

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...