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  5. GHSA-vx5f-vmr6-32wf

GHSA-vx5f-vmr6-32wf: cap-go/capacitor-native-biometric Authentication Bypass

February 10, 2026 (updated February 12, 2026)

The cap-go/capacitor-native-biometric library was found to be subject to an authentication bypass as the current implementation of the onAuthenticationSucceeded() does not appear to handle a CryptoObject[^HackTricks1] [^SecuringBiometricAuthentication] as seen in the following code block starting from line 88 in AuthActivity.java:

@Override
public void onAuthenticationSucceeded(
@NonNull BiometricPrompt.AuthenticationResult result
) {
super.onAuthenticationSucceeded(result);
finishActivity("success");
}

As the current implementation only checks whether onAuthenticationSucceeded() was called and does not handle a CryptoObject the biometric authentication can be bypassed by hooking the onAuthenticationSucceeded() function.

References

  • github.com/Cap-go/capacitor-native-biometric/commit/1254602e942f8216e6258f646f0866d8e69c48a5
  • github.com/Cap-go/capgo
  • github.com/Cap-go/capgo/security/advisories/GHSA-vx5f-vmr6-32wf
  • github.com/advisories/GHSA-vx5f-vmr6-32wf

Code Behaviors & Features

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Affected versions

All versions before 8.3.6

Fixed versions

  • 8.3.6

Solution

Upgrade to version 8.3.6 or above.

Impact 5.2 MEDIUM

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-287: Improper Authentication

Source file

npm/@capgo/capacitor-native-biometric/GHSA-vx5f-vmr6-32wf.yml

Spotted a mistake? Edit the file on GitLab.

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