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OpenAdvisories
High · 7.1 CVE-2026-47723 EUVD-2026-48424GHSA-w7w5-5gcp-38rwGO-2026-5698

nebula-mesh: Web UI and API responses lack security headers (CSP, X-Frame-Options, HSTS, etc.)

Published Jul 23, 2026 · Updated Jul 24, 2026 · Assigned by GitHub_M

Description

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.1, none of the response paths in `internal/web/` or `internal/api/` set the standard browser-security headers. `grep` for `Content-Security-Policy`, `X-Frame-Options`, `Strict-Transport-Security`, `X-Content-Type-Options`, `Referrer-Policy` returns zero matches across the codebase. Version 0.3.1 fixes the issue.

Affected products

VendorProductAffectedFixed
juev nebula-mesh < 0.3.1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/juev/nebula-mesh < 0.3.1 0.3.1 GHSA-w7w5-5gcp-38rw

Advisories 1

References