AIKIDO-2026-593908
bcpkix-jdk18on is vulnerable to Uncontrolled Resource Consumption
53
CVE Score
Medium
Uncontrolled Resource Consumption
TL;DR
The PKCS#8 and PBES2 decryptor provider builders in the org.bouncycastle.pkcs and org.bouncycastle.openssl packages honour the key-derivation cost parameters declared in encrypted private-key input without an upper bound. Decrypting a crafted encrypted private key that declares an extreme key-derivation cost forces excessive computation. Before the fix, untrusted PKCS#8 or PBES2 input can drive uncontrolled resource consumption. The fix imposes limits on the accepted key-derivation parameters.
How do I fix this?
Upgrade the org.bouncycastle:bcpkix-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 decrypt PKCS#8 or PBES2 encrypted private keys from untrusted sources.
Package
Versions
0.0.1 - 1.84
Fixed in 1.85Background info
bcpkix-jdk18on is vulnerable to Uncontrolled Resource Consumption in versions 0.0.1 - 1.84.
Links
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