Lago through 1.55.0 contains an authentication bypass vulnerability that allows organization administrators to obtain
Source GCVE Database
Not known to be exploited · CVSS 8.7 High.
Data as of 30 Oct 2026, 13:35 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 8.7 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 8.8 |
| CNA | CVSS 4.0 | 8.7 |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| getlagolago | Affected
| Fixed in– |
GitHublagopkg:github/lagoOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, restrict organization administrator privileges and monitor for suspicious invitation acceptance activities.
Description
Lago versions through 1.55.0 have an authentication bypass vulnerability that allows organization administrators to obtain session tokens for existing accounts without password verification. This occurs via the acceptInvite mutation, enabling attackers to accept an invitation with any password and receive a JWT token. Exploitation can lead to unauthorized access to organizations, billing data, API keys, and payment integrations.
References
- nvd.nist.gov/vuln/detail/CVE-2026-119420 (opens in a new tab)
- github.com/getlago/lago-api/pull/6146 (opens in a new tab)
- github.com/getlago/lago-api/commit/5a9d5935b027d1db7171c7c015283d5870451305 (opens in a new tab)
- abraxaslabs.tech/research/lago-invite-ato (opens in a new tab)
- github.com/getlago/lago-api (opens in a new tab)
- github.com/getlago/lago-api/blob/v1.55.0/app/services/invites/accept_service.rb (opens in a new tab)
- github.com/getlago/lago-api/blob/v1.55.0/app/services/users_service.rb (opens in a new tab)
- vulncheck.com/advisories/lago-through-1.55.0-authentication-bypass-via-acceptinvite-graphql-mutation (opens in a new tab)