High severity8.8NVD Advisory· Published Oct 30, 2026
CVE-2026-119420
CVE-2026-119420
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
1Patches
Vulnerability mechanics
References
6- abraxaslabs.tech/research/lago-invite-atonvd
- github.com/getlago/lago-api/blob/v1.55.0/app/services/invites/accept_service.rbnvd
- github.com/getlago/lago-api/blob/v1.55.0/app/services/users_service.rbnvd
- github.com/getlago/lago-api/commit/5a9d5935b027d1db7171c7c015283d5870451305nvd
- github.com/getlago/lago-api/pull/6146nvd
- www.vulncheck.com/advisories/lago-through-1.55.0-authentication-bypass-via-acceptinvite-graphql-mutationnvd
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