{"answers":{"affected":"3 open source packages ship an affected version, including github.com/forgekeep/nebula-mesh.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-63464 exists.","fix":"Upgrade github.com/forgekeep/nebula-mesh to 0.7.2 or later.","what":"CVE-2026-63464 is a high-severity server-side request forgery vulnerability in forgekeep nebula-mesh, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-63464 and fix it if it is affected.\n\nWhat it is: CVE-2026-63464 is a high-severity server-side request forgery vulnerability in forgekeep nebula-mesh, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-63464 exists.\n\nAffected packages and fixed versions:\n- github.com/forgekeep/nebula-mesh (Go): affected from 0.6.0; fixed in 0.7.2\n- github.com/forgekeep/nebula-mesh (Go): affected from 0.6.0; fixed in 0.7.2\n- github.com/forgekeep/nebula-mesh (Go): affected from 0.6.0; fixed in 0.7.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-63464/ (Markdown: https://insights.sbomify.com/CVE-2026-63464/index.md)","id":"CVE-2026-63464","markdown":"https://insights.sbomify.com/CVE-2026-63464/index.md","name":"CVE-2026-63464","record":{"aliases":["GHSA-7rx3-5wx3-5v76","GO-2026-5985"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Nebula mesh control plane","requires_auth":"low_privilege","summary":"Non-admin operators can bypass SSRF protections to force the server to request internal network addresses.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"},{"id":"CWE-862","name":"Missing Authorization"}],"description":"nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. From version 0.6.0 to before version 0.7.2, non-admin operators (role user) can set allow_private: true on their own managed webhook subscription (POST/PATCH /api/v1/webhook-subscriptions). No admin check exists on this field. At delivery time, allow_private switches the dispatcher to an unguarded HTTP client, bypassing the private/loopback/link-local SSRF guard — letting a low-privilege operator make the server request internal addresses. This issue has been patched in version 0.7.2.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Nebula-mesh allows non-admin operators to disable webhook SSRF protection via `allow_private`","id":"CVE-2026-63464","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Unleash: Global Mustache.escape override disables HTML escaping process-wide, enabling Slack/Teams link-injection via unrestricted username","id":"CVE-2026-63466"},"packages":[{"ecosystem":"Go","fixed":["0.7.2"],"introduced":["0.6.0"],"last_affected":[],"package":"github.com/forgekeep/nebula-mesh","purl":null,"source":"GHSA-7rx3-5wx3-5v76"},{"ecosystem":"Go","fixed":["0.7.2"],"introduced":["0.6.0"],"last_affected":[],"package":"github.com/forgekeep/nebula-mesh","purl":"pkg:golang/github.com/forgekeep/nebula-mesh","source":"GHSA-7rx3-5wx3-5v76"},{"ecosystem":"Go","fixed":["0.7.2"],"introduced":["0.6.0"],"last_affected":[],"package":"github.com/forgekeep/nebula-mesh","purl":"pkg:golang/github.com/forgekeep/nebula-mesh","source":"GO-2026-5985"}],"prev":{"headline":"Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter","id":"CVE-2026-63462"},"products":["nebula-mesh"],"published":"2026-09-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-08","vendors":["forgekeep"]},"summary":"Non-admin operators can bypass SSRF protections to force the server to request internal network addresses.","url":"https://insights.sbomify.com/CVE-2026-63464/"}