HIGH

CVE-2026-12816

Bouncycastle Bc Java 2026-08-03 CVSS v3.1

CVSS

7.5

Description

In Bouncy Castle for Java before 1.85, IESEngine stream-mode MAC forgery via length-dependent KDF split. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

Weakness (CWE)

CWE-354

EPSS Score

0.15%

Probability of exploitation in next 30 days

4.3th percentile

References

https://github.com/bcgit/bc-java/commit/6d9e4bbaee9409713ada167e5f901554cbb084ac Patch https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9012816 Third Party Advisory, Patch

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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