rok Python ProxyShare can be used as an SSRF proxy through absolute URL paths

Summary Alice exposes a Python SDK ProxyShare with a fixed target URL. Bob sends a request to the share with an absolute URL in the path. The Flask handler passes that path to urllib.parse.urljoin, which replaces Alice's configured target host with Bob's host and returns the server-side response ...

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...