# CVE-2026-104638: onetwothreeneth HospitalManagementSystem authentication bypass in sessions handler

Source: https://junglewise.ai/threats/cve-2026-104638-a-security-vulnerability-has-been-detected-in-onetwothreeneth  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-02. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-104638 · Severity: medium · CVSS 5.3 · Published 2026-10-02

A hospital management system used to store and manage patient records, physician information, and financial data contains a critical authentication flaw. An attacker can bypass login requirements and gain unrestricted access to sensitive patient data, financial records, and administrative functions by sending a simple web request without credentials. This allows unauthorized viewing and modification of confidential healthcare information and user accounts.

Technologies: [Onetwothreeneth HospitalManagementSystem](https://junglewise.ai/threats/technologies/hospitalmanagementsystem). Vendors: [Onetwothreeneth](https://junglewise.ai/threats/vendors/onetwothreeneth).

## Quick answers

**Is CVE-2026-104638 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-104638 being exploited in the wild.

**How severe is CVE-2026-104638?** Medium severity, with a CVSS score of 5.3, published 2 October 2026.

**Which products and versions are affected?** Onetwothreeneth HospitalManagementSystem up to 9ef91ed6007314b6473110ed699dff76d158f61d.

**Is there a fix for CVE-2026-104638?** 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-2026-104638 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-104638?** Check whether you run Onetwothreeneth HospitalManagementSystem at an affected version. 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

The vulnerability exists in php/sessions.php where authentication checks use an HTTP redirect without calling exit(), allowing PHP execution to continue and deliver protected content to unauthenticated users. Any page requiring authentication includes sessions.php before rendering sensitive data; when the session is invalid, the redirect header is sent but the response body containing patient lists, transaction data, and admin panels is still generated and returned. Remote attackers can exploit this with a simple HTTP request and no authentication credentials.

## Affected products

- onetwothreeneth HospitalManagementSystem up to 9ef91ed6007314b6473110ed699dff76d158f61d

## Timeline

- 2026-09-07: disclosed: Issue reported on GitHub
- 2026-10-02: advisory

## References

- [https://github.com/onetwothreeneth/HospitalManagementSystem/](https://github.com/onetwothreeneth/HospitalManagementSystem/)
- [https://github.com/onetwothreeneth/HospitalManagementSystem/issues/6](https://github.com/onetwothreeneth/HospitalManagementSystem/issues/6)

## Related threats

- [onetwothreeneth HospitalManagementSystem SQL injection in print.php](https://junglewise.ai/threats/cve-2026-105386-a-vulnerability-was-identified-in-onetwothreeneth)
- [onetwothreeneth HospitalManagementSystem SQL injection in transaction_details.php](https://junglewise.ai/threats/cve-2026-105385-a-vulnerability-was-determined-in-onetwothreeneth)
- [onetwothreeneth HospitalManagementSystem SQL injection in controller](https://junglewise.ai/threats/cve-2026-105383-a-vulnerability-has-been-found-in-onetwothreeneth)
- [onetwothreeneth HospitalManagementSystem authorization bypass in account administration](https://junglewise.ai/threats/cve-2026-105382-a-flaw-has-been-found-in-onetwothreeneth)
- [onetwothreeneth HospitalManagementSystem unrestricted file upload](https://junglewise.ai/threats/cve-2026-104637-a-weakness-has-been-identified-in-onetwothreeneth)