CVE-2026-55739

8.3 HIGHpublic exploit available

Published 2026-08-05 · Updated 2026-08-10

AI risk analysis

Summary: The flaw allows an attacker to bypass company ownership checks, leading to unauthorized access and manipulation of customer data.
Exploitability: Exploitation requires knowledge of the company_id and ability to perform ability checks, making it moderately difficult.
Blast radius: If exploited, the attacker could access, modify, or delete sensitive customer data across multiple companies, leading to significant data breaches.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Apply the patch to version 2.590 or later immediately to address the vulnerability.

auth-bypassdata-breachweb

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

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).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Weaknesses

CWE-639

Public exploit & PoC references

https://github.com/crater-invoice/crater

References

https://github.com/crater-invoice/crater

Data: NVD (public domain). Analysis: local $0 model. Defensive use only.