CVE-2026-47722

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/configgen/generator.go:86,108,119 interpolates the operator-supplied ListenHost and TunDevice fields raw into a text/template that produces the agent's config.yml...

CVE-2026-47722

Nebula-mesh (self-hosted control plane for Slack Nebula) prior to v0.3.2 is affected by YAML injection in host advanced overrides. The root cause is that ListenHost and TunDevice are interpolated directly into a text/template used to generate the agent config.yml, and the web/advanced input has o...

CVE-2026-47722 nebula-mesh: Host advanced overrides allow YAML injection into agent config.yml

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/configgen/generator.go:86,108,119 interpolates the operator-supplied ListenHost and TunDevice fields raw into a text/template that produces the agent's config.yml...

GO-2026-5987 Insecure enrollment token TTL in nebula-mesh in github.com/forgekeep/nebula-mesh

The nebula-mesh Web UI host creation ignores the configured enrollment token TTL and instead mints 24-hour bearer enrollment tokens. This can lead to tokens remaining valid for longer than intended, increasing the window of opportunity for an attacker to use an intercepted token...

GO-2026-5989 Unauthenticated OIDC login in nebula-mesh allows unbounded memory allocation in github.com/forgekeep/nebula-mesh

When OIDC is enabled, the login endpoint is reachable without authentication and is registered outside the rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map. An unauthenticated remote client can grow the state storage, bounded by...

CVE-2026-47723: Improper Restriction of Rendered UI Layers or Frames

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,...

CVE-2026-47724: Missing Authorization

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.4, the /api/v1/ route surface trusts the bearer token alone for authorisation on most endpoints. The codebase itself admits this at internal/api/hosts.go:384: "API trusts the bearer toke...

CVE-2026-47722: Improper Control of Generation of Code

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/configgen/generator.go:86,108,119 interpolates the operator-supplied ListenHost and TunDevice fields raw into a text/template that produces the agent's config.yml...

GO-2026-5986 nebula-mesh: Certificate revocation is never enforced at the mesh in github.com/forgekeep/nebula-mesh

nebula-mesh: Certificate revocation is never enforced at the mesh in github.com/forgekeep/nebula-mesh...

GO-2026-5985 Nebula-mesh allows non-admin operators to disable webhook SSRF protection via `allow_private` in github.com/forgekeep/nebula-mesh

Nebula-mesh allows non-admin operators to disable webhook SSRF protection via allowprivate in github.com/forgekeep/nebula-mesh...

GO-2026-5991 nebula-mesh: Operator session tokens stored in plaintext in the database in github.com/forgekeep/nebula-mesh

nebula-mesh: Operator session tokens stored in plaintext in the database in github.com/forgekeep/nebula-mesh...

GO-2026-5984 nebula-mesh: CA private key not zeroized on web mobile-bundle error paths in github.com/forgekeep/nebula-mesh

nebula-mesh: CA private key not zeroized on web mobile-bundle error paths in github.com/forgekeep/nebula-mesh...

GO-2026-5950 nebula-mesh: Host revocation is not durable - blocked/offboarded hosts can regain a valid certificate in github.com/forgekeep/nebula-mesh

nebula-mesh: Host revocation is not durable - blocked/offboarded hosts can regain a valid certificate in github.com/forgekeep/nebula-mesh...

Uncontrolled Resource Consumption

github.com/forgekeep/nebula-mesh is vulnerable to Uncontrolled Resource Consumption. The vulnerability is due to the unauthenticated /ui/oidc/login endpoint creating and storing a new OIDC state for every request without rate limiting or a maximum state limit, which allows an attacker to repeated...

CVE-2026-61699

creationtimestamp| type| source ---|---|--- 2026-07-14 22:35:16+00:00| published-proof-of-concept| https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-cm26-5974-52h8 2026-09-04 21:01:12+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mupucp3vqa2g 2026-09-08...

CVE-2026-55512

creationtimestamp| type| source ---|---|--- 2026-07-14 22:35:07+00:00| published-proof-of-concept| https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-m3cx-mwpg-32jg...

CVE-2026-55513

creationtimestamp| type| source ---|---|--- 2026-07-14 22:35:04+00:00| published-proof-of-concept| https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-g4x6-jcvr-9m3g...

GHSA-7RX3-5WX3-5V76 Nebula-mesh allows non-admin operators to disable webhook SSRF protection via `allow_private`

Summary Non-admin operators role user can set allowprivate: true on their own managed webhook subscription POST/PATCH /api/v1/webhook-subscriptions. No admin check exists on this field. At delivery time, allowprivate switches the dispatcher to an unguarded HTTP client, bypassing the...

nebula-mesh: Certificate revocation is never enforced at the mesh

Summary nebula-mesh revokes a host by adding its certificate fingerprint to a per-CA blocklist and shipping that list to every other agent on each poll. Slack's Nebula enforces certificate revocation ONLY through the pki.blocklist list in config.yml no CRL/OCSP. The project's own code states this...

Operation on a Resource after Expiration or Release

Overview Affected versions of this package are vulnerable to Operation on a Resource after Expiration or Release due to the lack of enforcement of certificate revocation in the mesh network. An attacker can maintain unauthorized access to internal services and peers by continuing to use a revoked...