CVE-2026-119420
Lago through 1.55.0 contains an authentication bypass vulnerability that allows organization…
- Risk score
- 53/100
- CVSS
- 8.8 v3.1
- Published
- 30 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 vi…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.8 high
References
- https://abraxaslabs.tech/research/lago-invite-ato
- https://github.com/getlago/lago-api
- https://github.com/getlago/lago-api/blob/v1.55.0/app/services/invites/accept_service.rb#L15-L16
- https://github.com/getlago/lago-api/blob/v1.55.0/app/services/users_service.rb#L89-L98
- https://github.com/getlago/lago-api/commit/5a9d5935b027d1db7171c7c015283d5870451305
- https://github.com/getlago/lago-api/pull/6146
- https://www.vulncheck.com/advisories/lago-through-1.55.0-authentication-bypass-via-acceptinvite-graphql-mutation
Original 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.
Last activity 30 Oct 2026. Patch Forecast updates every hour.