AIKIDO-2026-62304
bcprov-jdk18on is vulnerable to Uncontrolled Resource Consumption
53
CVE Score
Medium
Uncontrolled Resource Consumption
TL;DR
The PKCS#12 keystore implementation in the Bouncy Castle JCE provider honours the MAC and bag-decryption key-derivation iteration count declared in an input file without an effective upper bound. Loading a crafted PKCS#12 keystore that declares an extremely large iteration count forces excessive key-derivation work. Before the fix, parsing untrusted PKCS#12 data can drive uncontrolled resource consumption. The fix validates and bounds the accepted iteration count during keystore load and bag decryption
How do I fix this?
Upgrade the org.bouncycastle:bcprov-jdk18on library to the patch version.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you load PKCS#12 files from untrusted sources.
Package
Versions
0.0.1 - 1.84
Fixed in 1.85Background info
bcprov-jdk18on is vulnerable to Uncontrolled Resource Consumption in versions 0.0.1 - 1.84.
Links
Fix Commits
github.com/bcgit/bc-java/commit/75d60dfb4ca72bea6da96234138bc9b1556ef5b0github.com/bcgit/bc-java/commit/fa59cc23502f73def89d94374540cc92af647b96
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