# CVE-2026-108796: ZKTeco BioTime authorization bypass in biometric data endpoint

Source: https://junglewise.ai/threats/cve-2026-108796-a-flaw-has-been-found-in-zkteco-biotime-9-5-6-build-20260130  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-108796 · Severity: medium · CVSS 4.3 · Published 2026-10-12

ZKTeco BioTime is a biometric time and attendance management system used to track employee check-in and check-out. An authorization bypass vulnerability in the biometric data endpoint allows remote attackers to manipulate employee codes and gain unauthorized access to biometric records and attendance data. This could enable fraud, attendance record manipulation, or unauthorized data access.

Technologies: [Zkteco BioTime](https://junglewise.ai/threats/technologies/biotime). Vendors: [Zkteco](https://junglewise.ai/threats/vendors/zkteco).

## Quick answers

**Is CVE-2026-108796 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-108796 being exploited in the wild.

**How severe is CVE-2026-108796?** Medium severity, with a CVSS score of 4.3, published 12 October 2026.

**Which products and versions are affected?** Zkteco BioTime 9.5.6 Build 20260130.3206.

**Is there a fix for CVE-2026-108796?** Yes: fixed in BioTime 9.5.6 Build 3623. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-108796 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-108796?** Check whether you run Zkteco BioTime 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.

## How to fix

- Fixed in BioTime 9.5.6 Build 3623

## Technical details

An authorization bypass vulnerability exists in the /iclock/finger_data/ endpoint of ZKTeco BioTime, where manipulation of the emp_code parameter bypasses access controls on the biometric data component. The flaw allows remote network-based exploitation without authentication requirements. A successful attack grants unauthorized access to biometric and attendance records.

## Affected products

- ZKTeco BioTime 9.5.6 Build 20260130.3206

## Timeline

- 2026-10-12: disclosed

## References

- [https://vuldb.com/cve/CVE-2026-108796](https://vuldb.com/cve/CVE-2026-108796)
- [https://vuldb.com/submit/961689](https://vuldb.com/submit/961689)

## Related threats

- [ZKTeco BioTime hard-coded cryptographic key](https://junglewise.ai/threats/cve-2026-108798-a-vulnerability-was-found-in-zkteco-biotime-9-5-6-build-20260130)
- [ZKTeco BioTime authorization bypass in Employee REST API](https://junglewise.ai/threats/cve-2026-108797-a-vulnerability-has-been-found-in-zkteco-biotime-9-5-6-build)
- [ZKTeco BioTime improper access control in system settings API](https://junglewise.ai/threats/cve-2026-108795-a-vulnerability-was-detected-in-zkteco-biotime-9-5-6-build)
- [ZKTeco BioTime SQL injection in database migration](https://junglewise.ai/threats/cve-2026-108794-a-security-vulnerability-has-been-detected-in-zkteco-biotime-9-5)
- [ZKTeco BioTime IDOR password disclosure in safe_setting endpoint](https://junglewise.ai/threats/cve-2025-15128-zkteco-biotime-idor-password-disclosure-in-safe-setting-endpoint)