TI-2026-40237 Aliases CVE-2026-55739 GHSA-j2xj-x8wc-f6xg

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

LOW 38CWE-639Published 2026-08-05 · Updated 2026-08-10

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00374 31st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
crater-invoice	Crater	6.0.6	—	No fix listed	CNA

Crater Vendorcrater-invoice Affected 6.0.6 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-55739
2026-10-03 Alias added: GHSA-j2xj-x8wc-f6xg

References

Advisory 1

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

TI-2026-41666 Crater Invoice 6.0.6 Path Traversal RCE via update/unzip endpoint CVSS 4.0HIGH 8.7
TI-2026-12467 crater-invoice-inc crater Invoice Note InvoicesRequest.php getFormattedString cross site scripting CVSS 4.0MEDIUM 5.1
TI-2023-25319 /api/v1/company/upload-logo in CompanyController.php in crater through 6.0.6 allows a… CVSS 3.1HIGH 7.2
TI-2021-02963 Unrestricted Upload of File with Dangerous Type in crater-invoice/crater CVSS 3.1HIGH 8.8
TI-2026-49913 Crater - Cross-Company IDOR on Notes via Missing Company-Ownership Check in NotePolicy CVSS 3.1HIGH 8.2
TI-2022-00930 Unrestricted Upload of File with Dangerous Type in crater-invoice/crater CVSS 3.1HIGH 7.8

See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences