AIKIDO-2026-67368
bcprov-jdk14 is vulnerable to Improper Certificate Validation
85
High Risk
This Affects:
bcprov-jdk14TL;DR
The legacy org.bouncycastle.x509.PKIXCertPathReviewer skips X.509 name-constraint checks for the target certificate and can report a prohibited leaf certificate as valid. The fix applies name constraints at path index zero while preserving target-specific RFC behavior.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you use org.bouncycastle.x509.PKIXCertPathReviewer as the trust decision for certificate paths constrained by permitted or excluded names.
Background info
bcprov-jdk14 is vulnerable to Improper Certificate Validation in versions 1.43 - 1.85.2.
How to fix this
Upgrade the bcprov-jdk14 library to the patch version.
Links
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