CVE-2026-48058 — nebula-mesh: Session and OIDC state cookies lack the Secure attribute
nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/web/session.go and internal/web/oidc.go set HttpOnly a…
Published: 2026-07-28 · CVSS: 4.6 · CVSS 4.0
nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/web/session.go and internal/web/oidc.go set HttpOnly and SameSite=Lax on every cookie but never Secure. A single plaintext request to the origin (operator on a LAN, mistyped URL, HTTP→HTTPS not strictly enforced, reverse proxy misconfiguration) discloses the session. This issue has been patched in version 0.3.2.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7