CVE-2026-48058
nebula-mesh: Session and OIDC state cookies lack the Secure attribute
- State
- Published
- Severity
- 4.6 Medium
- Published
- Jul 28, 2026
- Updated
- Jul 28, 2026
- Reserved
- May 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.6 Medium | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U | GitHub_M |
Weaknesses
- CWE-614 Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
Affected Products
| Product | Versions |
|---|---|
nebula-meshjuev |
|
References
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