# CVE-2026-8803: opensourcepos Open Source Point of Sale weak hash in Employee Login

Source: https://junglewise.ai/threats/cve-2026-8803-opensourcepos-open-source-point-of-sale-weak-hash-in-employee  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-18. Updated: 2026-05-18  
License: CC BY 4.0 with a link back

CVE-2026-8803 · Severity: low · CVSS 3.7 · Published 2026-05-18

Open Source Point of Sale is a web-based retail management system. A security issue was identified where the software uses an outdated and weak method for hashing passwords during the login process. While this could theoretically allow an attacker to more easily crack stolen password data, the vendor states this is legacy code used only for upgrading older accounts and that passwords are automatically updated to a secure format upon the next successful login.

## Quick answers

**Is CVE-2026-8803 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-8803 being exploited in the wild.

**How severe is CVE-2026-8803?** Low severity, with a CVSS score of 3.7, published 18 May 2026.

**Which products and versions are affected?** opensourcepos Open Source Point of Sale up to 3.4.2.

**Is there a fix for CVE-2026-8803?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-8803 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-8803?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability classified as Use of a Broken or Risky Cryptographic Algorithm (CWE-327/CWE-328) exists in the Login function of app/Models/Employee.php. The application utilizes a weak hashing algorithm for password verification to maintain backward compatibility for legacy accounts. An attacker with access to the database could potentially crack these weak hashes more efficiently than modern standards allow. However, the vendor notes that the system is designed to migrate users to a stronger hash immediately upon their first successful login following an upgrade, and any manual password changes utilize the updated, secure hashing mechanism. The exploitability is considered difficult due to the high complexity of targeting specific unmigrated accounts.

## Affected products

- opensourcepos Open Source Point of Sale up to 3.4.2

## Timeline

- 2026-05-18: advisory: NVD published the CVE record based on VulDB data
- 2026-05-18: disclosed: Vendor provided a statement disputing the severity/impact of the legacy code

## References

- [https://vuldb.com/submit/802561](https://vuldb.com/submit/802561)
- [https://vuldb.com/vuln/364436](https://vuldb.com/vuln/364436)
- [https://vuldb.com/vuln/364436/cti](https://vuldb.com/vuln/364436/cti)