What is GHSA-834p-whmm-rg5r?

GHSA-834p-whmm-rg5r is a security advisory published by GitHub Security Advisories with High severity. In Bouncy Castle for Java before 1.85, IESEngine stream-mode MAC forgery via length-dependent KDF...

Which CVE IDs does GHSA-834p-whmm-rg5r cover?

GHSA-834p-whmm-rg5r covers the following CVE IDs: CVE-2026-12816. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-834p-whmm-rg5rHigh

In Bouncy Castle for Java before 1.85, IESEngine stream-mode MAC forgery via length-dependent KDF...

Vendor

GitHub Security Advisories

Published

August 3, 2026

Last Modified

August 3, 2026

🔗 CVE IDs covered (1)

CVE-2026-12816 →

📋 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.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-12816
https://github.com/bcgit/bc-java/commit/6d9e4bbaee9409713ada167e5f901554cbb084ac
https://github.com/bcgit/bc-java/wiki/CVE-2026-12816
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9012816
https://github.com/advisories/GHSA-834p-whmm-rg5r