CVE-2025-12194
CVE-2025-12194 is a Uncontrolled Resource Consumption vulnerability in org.bouncycastle:bc-fips. O3 Security confirms whether CVE-2025-12194 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Bouncy Castle Vulnerable to Uncontrolled Resource Consumption
Real-World Exposure
org.bouncycastle:bc-fips☕org.bouncycastle:bcprov-debug-lts8onReal-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
Uncontrolled Resource Consumption vulnerability in Legion of the Bouncy Castle Inc. Bouncy Castle for Java FIPS bc-fips on All (API modules), Legion of the Bouncy Castle Inc. Bouncy Castle for Java LTS bcprov-lts8on on All (API modules) allows Excessive Allocation. This vulnerability is associated with program files core/src/main/jdk1.9/org/bouncycastle/crypto/fips/AESNativeCFB.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/fips/AESNativeGCM.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/fips/SHA256NativeDigest.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/fips/AESNativeEngine.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/fips/AESNativeCBC.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/fips/AESNativeCTR.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/engines/AESNativeCFB.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/engines/AESNativeGCM.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/engines/AESNativeEngine.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/engines/AESNativeCBC.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/engines/AESNativeGCMSIV.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/engines/AESNativeCCM.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/engines/AESNativeCTR.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/digests/SHA256NativeDigest.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/digests/SHA224NativeDigest.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/digests/SHA3NativeDigest.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/digests/SHAKENativeDigest.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/digests/SHA512NativeDigest.Java, core/src/main/jdk1.9/org/bouncycastle/crypto/digests/SHA384NativeDigest.Java.
This issue affects Bouncy Castle for Java FIPS: from 2.1.0 through 2.1.1; Bouncy Castle for Java LTS: from 2.73.0 through 2.73.7.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.bouncycastle:bc-fips | ≥ 2.1.0&&< 2.1.2 | 2.1.2 |
| ☕Maven | org.bouncycastle:bcprov-debug-lts8on | ≥ 2.73.0&&< 2.73.8 | 2.73.8 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.bouncycastle:bc-fips. 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.
Fix
Update org.bouncycastle:bc-fips to 2.1.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-12194 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 pinpoints whether CVE-2025-12194 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 CVE-2025-12194. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-12194 in your dependencies?
O3 detects CVE-2025-12194 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.