CVE-2026-46484: Headplane: Path Traversal + RBAC Bypass in renameNode allows authenticated OIDC users to expire or rename any node/user

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-08 · updated 2026-07-23
Weakness: CWE-22

Description

Headplane is a feature-complete Web UI for Headscale. Prior to versions 0.6.3 and 0.7.0-beta.3, Headplane was vulnerable to a path traversal / authorization bypass in the Headscale API client used by node and user rename operations. This issue has been patched in versions 0.6.3 and 0.7.0-beta.3.

Affected products

tale headplane: before 0.6.3; from 0.7.0-beta.1, < 0.7.0-beta.3

References

https://github.com/tale/headplane/releases/tag/v0.6.3
https://github.com/tale/headplane/releases/tag/v0.7.0-beta.3
https://github.com/tale/headplane/security/advisories/GHSA-vgj6-hcf2-fqf6

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