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GHSA-cj8j-37rh-8475

GHSA-cj8j-37rh-8475 is a security vulnerability in org.bouncycastle:bcpg-jdk12. O3 Security confirms whether GHSA-cj8j-37rh-8475 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Bouncy Castle Uncontrolled Resource Consumption vulnerability

Also known asCVE-2026-3505
Published
Apr 17, 2026
Updated
Apr 18, 2026
Affected
7 pkgs
Patched
3 / 7
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk52th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

7 pkgs affected
org.bouncycastle:bcpg-jdk12org.bouncycastle:bcpg-jdk14org.bouncycastle:bcpg-jdk15org.bouncycastle:bcpg-jdk15to18org.bouncycastle:bcpg-jdk15onorg.bouncycastle:bcpg-jdk16org.bouncycastle:bcpg-jdk18on

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Allocation of resources without limits or throttling vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpg on all (pg modules). This issue affects BC-JAVA before 1.84.

Unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion.

Affected Packages

7 total 3 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.bouncycastle:bcpg-jdk12all versionsNo fix
Mavenorg.bouncycastle:bcpg-jdk14all versions1.84
Mavenorg.bouncycastle:bcpg-jdk15all versionsNo fix
Mavenorg.bouncycastle:bcpg-jdk15to18all versions1.84
Mavenorg.bouncycastle:bcpg-jdk15onall versionsNo fix
Mavenorg.bouncycastle:bcpg-jdk16all versionsNo fix

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.bouncycastle:bcpg-jdk12. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    No patched version of org.bouncycastle:bcpg-jdk12 has shipped for GHSA-cj8j-37rh-8475 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-cj8j-37rh-8475 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-cj8j-37rh-8475. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Allocation of resources without limits or throttling vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpg on all (pg modules). This issue affects BC-JAVA before 1.84. Unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion.
O3 Security · Impact-Aware SCA

Is GHSA-cj8j-37rh-8475 in your dependencies?

O3 detects GHSA-cj8j-37rh-8475 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.