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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| getlago | lago | ≤ 1.55.0 | — |
References
- https://github.com/getlago/lago-api/commit/5a9d5935b027d1db7171c7c015283d5870451305 patch
- https://github.com/getlago/lago-api/pull/6146 issue-tracking patch
- https://github.com/getlago/lago-api/blob/v1.55.0/app/services/users_service.rb#L89-L98 technical-description
- https://github.com/getlago/lago-api/blob/v1.55.0/app/services/invites/accept_service.rb#L15-L16 technical-description
- https://abraxaslabs.tech/research/lago-invite-ato third-party-advisory
- https://github.com/getlago/lago-api product
- VulnCheck Advisory: Lago through 1.55.0 Authentication Bypass via acceptInvite GraphQL Mutation third-party-advisory