AIKIDO-2026-415437
bcpkix-jdk18on is vulnerable to Insufficient Verification of Data Authenticity
82
High Risk
This Affects:
bcpkix-jdk18onTL;DR
CMS AuthenticatedData accepts authenticated attributes when digestAlgorithm is absent, so attacker-inserted attributes are exposed even though the MAC never covered them. The fix rejects inconsistent digestAlgorithm and authAttrs presence in both the in-memory and streaming CMS paths.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you parse CMS AuthenticatedData and make authorization, routing, or labeling decisions from authenticated attributes.
Background info
bcpkix-jdk18on is vulnerable to Insufficient Verification of Data Authenticity in versions 1.71 - 1.85.
How to fix this
Upgrade the bcpkix-jdk18on library to the patch version.
Are You Affected?
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