CyberRota Analysis
AI-GeneratedThe vulnerability affects the nebula-mesh control plane for Slack Nebula, specifically prior to version 0.3.3, where session cookies are improperly handled, allowing potential cross-site request forgery (CSRF) attacks. Attackers could exploit this flaw to perform unauthorized actions, such as logging out users or manipulating data, particularly through top-level form submissions and sibling subdomain attacks. Organizations using affected versions should prioritize upgrading to version 0.3.3 to mitigate these security risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.3, every /ui/* POST / PUT / PATCH / DELETE route processes the request as soon as the session cookie validates. SameSite=Lax on the session cookie prevents most cross-site form submits but does not protect: top-level form-submit navigations from third-party pages (some browsers still send Lax cookies on top-level POSTs); same-registrable-domain attackers (sibling-subdomain XSS, subdomain takeover); the GET /ui/logout route, which a third-party <img src=".../ui/logout"> can force-trigger. This issue has been patched in version 0.3.3.