PatchSiren cyber security CVE debrief
CVE-2026-56294 capacitor-native-biometric CVE debrief
CVE-2026-56294 is a medium-severity authentication bypass vulnerability in capacitor-native-biometric before 12.128.2. The vulnerability arises from the onAuthenticationSucceeded() method's failure to validate CryptoObject parameters, allowing attackers to bypass biometric authentication without valid credentials by hooking the function using dynamic instrumentation. This issue affects users of the capacitor-native-biometric library, particularly those in the mobile app development sector. The defender exposure question revolves around whether they are using a vulnerable version of capacitor-native-biometric and have adequate measures in place to mitigate potential attacks. Given the medium severity and potential for exploitation, a cautious and prompt posture is recommended.
- Vendor
- capacitor-native-biometric
- Product
- Unknown
- CVSS
- MEDIUM 4.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-20
- Original CVE updated
- 2026-06-22
- Advisory published
- 2026-06-20
- Advisory updated
- 2026-06-22
Who should care
Developers and security teams using the capacitor-native-biometric library, especially in mobile app development, should be aware of this vulnerability. They need to assess their current version of capacitor-native-biometric and take necessary actions to mitigate potential risks. This includes reviewing their app's dependency tree, understanding their attack surface, and implementing compensating controls if an upgrade is not immediately feasible.
Technical summary
The CVE-2026-56294 vulnerability is caused by the onAuthenticationSucceeded() method in capacitor-native-biometric before 12.128.2 not validating CryptoObject parameters properly. This oversight allows attackers to exploit the function through dynamic instrumentation, effectively bypassing biometric authentication. The vulnerability has a CVSS score of 4.3, indicating a medium severity level. The attack vector is considered to be of high complexity (AC:H), and the impact on confidentiality is high (VC:H) while the impact on integrity is low (VI:L).
Defensive priority
Medium priority due to the potential for authentication bypass, but requires specific conditions and access to be exploitable.
Recommended defensive actions
- Inventory and review the current version of capacitor-native-biometric used in your projects.
- Upgrade to version 12.128.2 or later of capacitor-native-biometric.
- Review and enhance the authentication and authorization mechanisms in your applications.
- Implement compensating controls such as additional verification steps for sensitive operations.
- Monitor your applications for unusual activity that could indicate attempted exploitation.
Evidence notes
The primary evidence for this vulnerability comes from the CVE record and the NVD detail page. The vulnerability affects capacitor-native-biometric versions before 12.128.2. The CVE was published and modified on June 20, 2026. The details indicate a medium severity vulnerability with a CVSS score of 4.3. The evidence limits suggest that while the vulnerability exists, its exploitation is not straightforward and requires specific conditions to be met.
Official resources
This article is AI-assisted and based on the supplied source corpus.