CVE-2026-48058
Medium
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.
SeverityMedium
CVSS4.6
Exploit probability—
ProductGithub.com/juev/nebula-mesh
PublishedJul 28, 2026
First seenJul 28, 2026
Weakness typeCWE-614CWE-614
How to fix
Update
- github.com/juev/nebula-mesh0.3.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/juev/nebula-meshGo | v < 0.3.2 | 0.3.2 |
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