CVE-2026-119420
Lago through 1.55.0 Authentication Bypass via acceptInvite GraphQL Mutation
- State
- Published
- Severity
- 8.7 High
- Published
- Oct 30, 2026
- Updated
- Oct 30, 2026
- Reserved
- Oct 30, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-288 Authentication Bypass Using an Alternate Path or Channel
Affected Products
| Product | Versions |
|---|---|
lagogetlago |
|
References
- https://github.com/getlago/lago-api/commit/5a9d5935b027d1db7171c7c015283d5870451305patch
- https://github.com/getlago/lago-api/pull/6146issue-trackingpatch
- https://github.com/getlago/lago-api/blob/v1.55.0/app/services/users_service.rb#L89-L98technical-description
- https://github.com/getlago/lago-api/blob/v1.55.0/app/services/invites/accept_service.rb#L15-L16technical-description
- https://abraxaslabs.tech/research/lago-invite-atothird-party-advisory
- https://github.com/getlago/lago-apiproduct
- VulnCheck Advisory: Lago through 1.55.0 Authentication Bypass via acceptInvite GraphQL Mutationthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.