{"id":"CVE-2026-119420","state":"PUBLISHED","title":"Lago through 1.55.0 Authentication Bypass via acceptInvite GraphQL Mutation","description":"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.","publishedAt":"2026-10-30T11:30:51.565Z","updatedAt":"2026-10-30T11:30:51.565Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["getlago lago"],"affected":[{"vendor":"getlago","product":"lago","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.55.0","versionType":"semver"}],"repo":"https://github.com/getlago/lago-api"}],"references":["https://github.com/getlago/lago-api/commit/5a9d5935b027d1db7171c7c015283d5870451305","https://github.com/getlago/lago-api/pull/6146","https://github.com/getlago/lago-api/blob/v1.55.0/app/services/users_service.rb#L89-L98","https://github.com/getlago/lago-api/blob/v1.55.0/app/services/invites/accept_service.rb#L15-L16","https://abraxaslabs.tech/research/lago-invite-ato","https://github.com/getlago/lago-api","https://www.vulncheck.com/advisories/lago-through-1.55.0-authentication-bypass-via-acceptinvite-graphql-mutation"],"weaknesses":["CWE-288"],"ingestedAt":"2026-10-30T11:38:06.457Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/119xxx/CVE-2026-119420.json","commit":"caad128d12b89565fbbe034f6027c5d022a3f402","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119420","state":"PUBLISHED","datePublished":"2026-10-30T11:30:51.565Z","dateUpdated":"2026-10-30T11:30:51.565Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-30T02:41:12.203Z"},"containers":{"cna":{"title":"Lago through 1.55.0 Authentication Bypass via acceptInvite GraphQL Mutation","descriptions":[{"lang":"en","value":"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. 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