{"id":"GHSA-4g9m-rffv-h6wq","summary":"Crabbox: authentication bypass vulnerability that allows impersonation of others by spoofing identity headers","details":"Crabbox prior to v0.12.0 contains an authentication bypass vulnerability that allows non-admin shared-token callers to impersonate other owners or organizations by spoofing identity headers. Attackers can inject malicious X-Crabbox-Owner and X-Crabbox-Org headers in requests authenticated with a shared token to bypass authorization checks and access owner/org-scoped lease operations belonging to victim accounts.","aliases":["CVE-2026-8621","GO-2026-5120"],"modified":"2026-06-25T18:56:27.404936989Z","published":"2026-05-14T21:30:43Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-05-21T19:29:07Z","nvd_published_at":"2026-05-14T19:16:39Z","cwe_ids":["CWE-287"]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8621"},{"type":"WEB","url":"https://github.com/openclaw/crabbox/pull/70"},{"type":"WEB","url":"https://github.com/openclaw/crabbox/commit/b657323f1d1c954cefc8444571fa6c45a8896e7f"},{"type":"PACKAGE","url":"https://github.com/openclaw/crabbox"},{"type":"WEB","url":"https://github.com/openclaw/crabbox/releases/tag/v0.12.0"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/crabbox-authentication-bypass-via-header-spoofing"}],"affected":[{"package":{"name":"github.com/openclaw/crabbox","ecosystem":"Go","purl":"pkg:golang/github.com/openclaw/crabbox"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.12.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-4g9m-rffv-h6wq/GHSA-4g9m-rffv-h6wq.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}