Medium 6.9Published Jul 28, 2026

CVE-2026-47725nebula-mesh: Web UI lacks CSRF tokens on /ui/* mutating endpoints

Updated under an hour ago (Oct 26, 2026, 10:30 AM ET)

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It affects juev nebula-mesh. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for juev nebula-mesh

Exploited in the last 30 days

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: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-352
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

juev nebula-mesh juev:nebula_mesh (from the name)	before 0.3.3	CNA record

References

https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-273q-qgh5-wrj6x-refsource-confirm
https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.3x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.