Auth bypass in Crater-Invoice Crater
CVE-2026-55739
Crater isolates data per company_id, and its Invoice/Estimate/Payment/Expense policies enforce both a Bouncer ability check and ->hasCompany(->company_id). CustomerPolicy's view/update/delete methods omit the company-ownership check entirely, checking only the blanket ability. Route-model-bound customer lookups and the bulk Customer::deleteCustomers method are similarly unscoped (self::find with no company filter).
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.003 (18.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.
Affected products
- Crater-invoice Crater — versions 6.0.6
Weakness classification (CWE)
References
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (third-party-advisory)
Frequently asked questions
- What is CVE-2026-55739?
- CVE-2026-55739 is a high-severity vulnerability in Crater-Invoice Crater, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.3/10. Published 2026-08-05.
- How severe is CVE-2026-55739?
- High severity. CVSS v3 base score is 8.3 out of 10.