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CVE-2026-55739— Crater - Missing Tenant-Ownership Check in CustomerPolicy Allows Cross-Company Customer Data Theft and Deletion

Quick assessment

Affected
crater-invoice Crater
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Crater Invoice Crater是Crater Invoice组织的一款发票管理软件。 Crater Invoice Crater 6.0.6版本存在授权问题漏洞，该漏洞源于CustomerPolicy的view/update/delete方法缺少公司所有权检查，仅检查通用能力，导致已认证用户可读取、重新分配或删除其他公司的客户记录，删除操作还会级联删除该客户的发票和付款。

CVSS 8.2 · High EPSS 0.27% · P18

Affected Version Matrix 1

VendorProduct Version RangeStatus
crater-invoice Crater 6.0.6 affected
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I. Basic Information for CVE-2026-55739

Vulnerability Information
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Vulnerability Title
Crater - Missing Tenant-Ownership Check in CustomerPolicy Allows Cross-Company Customer Data Theft and Deletion
Source: CVE Program / CVE List V5
Vulnerability 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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Crater Invoice Crater 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Crater Invoice Crater是Crater Invoice组织的一款发票管理软件。 Crater Invoice Crater 6.0.6版本存在授权问题漏洞，该漏洞源于CustomerPolicy的view/update/delete方法缺少公司所有权检查，仅检查通用能力，导致已认证用户可读取、重新分配或删除其他公司的客户记录，删除操作还会级联删除该客户的发票和付款。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
crater-invoice Crater 6.0.6 -

II. Public POCs for CVE-2026-55739

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8167 chars
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III. Intelligence Information for CVE-2026-55739

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Other References for CVE-2026-55739 (1)

IV. Related Vulnerabilities

Same product: Crater
Same vendor: crater-invoice
Same weakness: CWE-639

V. Comments for CVE-2026-55739

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