CVE-2019-10856

CVE-2019-10856 is an open redirect vulnerability affecting Jupyter Notebook versions prior to 5.7.8, stemming from an incomplete fix for a previous vulnerability. This medium-severity flaw (CVSS 6.1) allows an unauthenticated attacker to redirect a user to an arbitrary malicious site through a network-based attack requiring user interaction, potentially leading to information disclosure or other client-side attacks. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.