CVE-2026-47725

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.3, every /ui/* POST / PUT / PATCH / DELETE route processes the request as soon as the session cookie validates. SameSite=Lax on the session cookie prevents most cross-site form submits but does not protect: top-level form-submit navigations from third-party pages (some browsers still send Lax cookies on top-level POSTs); same-registrable-domain attackers (sibling-subdomain XSS, subdomain takeover); the GET /ui/logout route, which a third-party <img src=".../ui/logout"> can force-trigger. This issue has been patched in version 0.3.3.

CVSS

No CVSS.

References

Link	Resource
https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.3
https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-273q-qgh5-wrj6
https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-273q-qgh5-wrj6

Configurations

No configuration.

History

28 Jul 2026, 20:17

Type	Values Removed	Values Added
References	~~() https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-273q-qgh5-wrj6 -~~	() https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-273q-qgh5-wrj6 -

28 Jul 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-28 19:17

Updated : 2026-07-30 16:41

NVD link : CVE-2026-47725

Mitre link : CVE-2026-47725

CVE.ORG link : CVE-2026-47725

JSON object : View

Products Affected

No product.

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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