# CVE-2026-118461: CompuGroup Medical shared client missing authentication for read/write operations

Source: https://junglewise.ai/threats/cve-2026-118461-the-shared-client-accepts-caller-controlled-doctor-identifiers  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-09. Updated: 2026-11-09  
License: CC BY 4.0 with a link back

CVE-2026-118461 · Severity: info · Published 2026-11-09

CompuGroup Medical software used by pharmacies and medical practices lacks authentication controls in a shared client component. An attacker could read or modify patient and professional data by supplying arbitrary identifiers without valid credentials, potentially exposing sensitive healthcare information or altering medical records.

Technologies: [CompuGroup Medical WingesFar](https://junglewise.ai/threats/technologies/wingesfar). Vendors: [CompuGroup Medical](https://junglewise.ai/threats/vendors/compugroup-medical).

## Quick answers

**Is CVE-2026-118461 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-118461 being exploited in the wild.

**How severe is CVE-2026-118461?** Informational severity, published 9 November 2026.

**Which products and versions are affected?** CompuGroup Medical STUDIO; CompuGroup Medical WINGESFAR; CompuGroup Medical STELLA; CompuGroup Medical XMEDICAL.

**Is there a fix for CVE-2026-118461?** 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-2026-118461 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-118461?** Check whether you run CompuGroup Medical STELLA, CompuGroup Medical STUDIO, CompuGroup Medical WingesFar or one of the others listed. 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 is a missing authentication and authorization check in the shared client's read and write operations. The client accepts caller-controlled doctor/professional identifiers without validating credentials, allowing an unauthenticated attacker to perform operations on arbitrary records. This is a direct authentication bypass affecting critical healthcare data operations.

## Affected products

- CompuGroup Medical STUDIO
- CompuGroup Medical WINGESFAR
- CompuGroup Medical STELLA
- CompuGroup Medical XMEDICAL

## Timeline

- 2026-11-09: disclosed

## References

- [https://www.acn.gov.it/portale/w/rilevate-vulnerabilita-in-prodotti-compugroup-medical](https://www.acn.gov.it/portale/w/rilevate-vulnerabilita-in-prodotti-compugroup-medical)
- [https://www.cgm.com/ita_it/magazine/articles/comunicati-stampa/piu-sicurezza-per-farmacie-studi-medici-e-pazienti-cgm-italia-risolve-potenziali-vulnerabilita-software-insieme-a-csirt-italia.html](https://www.cgm.com/ita_it/magazine/articles/comunicati-stampa/piu-sicurezza-per-farmacie-studi-medici-e-pazienti-cgm-italia-risolve-potenziali-vulnerabilita-software-insieme-a-csirt-italia.html)

## Related threats

- [CompuGroup Medical multiple products authentication and cryptographic vulnerabilities](https://junglewise.ai/threats/cve-2026-118798-multiple-sensitive-authentication-data-including-credentials)
- [CompuGroup Medical products hardcoded credentials in administrative functions](https://junglewise.ai/threats/cve-2026-118790-multiple-hardcoded-credentials-are-embedded-within-product)
- [CompuGroup Medical telemetry logging data exposure](https://junglewise.ai/threats/cve-2026-118467-shared-telemetry-and-logging-components-store-or-transmit)
- [CompuGroup Medical AIS login authentication bypass using hardcoded credentials](https://junglewise.ai/threats/cve-2026-118458-the-shared-ais-login-routing-selects-a-production-shipped-test)
- [CompuGroup Medical XDent and XMedical unauthenticated SQL injection](https://junglewise.ai/threats/cve-2026-112172-cgm-xdent-and-xmedical-expose-php-synchronization-endpoints-that)