{"id":"CVE-2026-119420","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-119420","summary":"Lago through 1.55.0 Authentication Bypass via acceptInvite GraphQL Mutation","details":"Lago through 1.55.0 contains an authentication bypass vulnerability that allows organization administrators to obtain session tokens for existing accounts via the acceptInvite mutation without a password check. Attackers can invite a victim's email, accept with an arbitrary password, and receive a JWT to access the victim's organizations, billing data, API keys and payment integrations.","published":"2026-10-30T11:30:51.565Z","modified":"2026-10-31T02:48:39.085516046Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/getlago/lago-api/commit/5a9d5935b027d1db7171c7c015283d5870451305","label":"getlago/lago-api@5a9d593"},"references":[{"type":"ADVISORY","url":"https://abraxaslabs.tech/research/lago-invite-ato"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119420.json"},{"type":"PACKAGE","url":"https://github.com/getlago/lago-api"},{"type":"ARTICLE","url":"https://github.com/getlago/lago-api/blob/v1.55.0/app/services/invites/accept_service.rb#L15-L16"},{"type":"ARTICLE","url":"https://github.com/getlago/lago-api/blob/v1.55.0/app/services/users_service.rb#L89-L98"},{"type":"FIX","url":"https://github.com/getlago/lago-api/commit/5a9d5935b027d1db7171c7c015283d5870451305"},{"type":"FIX","url":"https://github.com/getlago/lago-api/pull/6146"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119420"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/lago-through-1.55.0-authentication-bypass-via-acceptinvite-graphql-mutation"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-31T02:48:39.085516046Z"}}