CVE-2026-48058
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 4.6
- CVSS vector
- 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
- EPSS probability
- 0.19%
- CWE
- CWE-614
- Published
- 2026-07-28
- Last modified
- 2026-07-28
Affected products
- juev nebula-mesh
Weakness type
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