AIKIDO-2026-473893
bcprov-jdk18on is vulnerable to Uncontrolled Resource Consumption
87
High Risk
This Affects:
bcprov-jdk18onTL;DR
DefiniteLengthInputStream can allocate the full declared definite length up front without an adequate upper bound relative to available input or memory. A crafted ASN.1/definite-length encoding can trigger out-of-memory conditions. Applications parsing untrusted encodings are exposed to denial of service. The fix caps up-front allocation and reads incrementally within safe bounds.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you parse untrusted ASN.1 with large declared lengths.
Background info
bcprov-jdk18on is vulnerable to Uncontrolled Resource Consumption in versions 0.0.1 - 1.84.0.
How to fix this
Upgrade the org.bouncycastle provider library for your JDK target (bcprov-jdk18on, bcprov-jdk15to18 or bcprov-jdk14) to the patch version.
Links
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SOC 2Compliant
ISO 27001Compliant