VULNERABILITY INTELLIGENCE
CVE-2026-48058
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-07-28
Last modified2026-10-23
Description
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.
Weakness classification
- security-advisories@github.com: CWE-614