Advisory record · GHSA-4h8f-2wvx-gg5w

Bouncy Castle Java Cryptography API vulnerable to DNS poisoning

CVSS 5.9 MediumEPSS 0.0077 · 56th percentile

Published by the GitHub Advisory Database at 3 May 2024, 18:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
org.bouncycastle:bcprov-jdk18on	Maven	>=1.61, <1.78	1.78
org.bouncycastle:bcprov-jdk15to18	Maven	>=1.61, <1.78	1.78
org.bouncycastle:bcprov-jdk14	Maven	>=1.61, <1.78	1.78
org.bouncycastle:bcprov-jdk12	Maven	>=1.61, <1.78	1.78
org.bouncycastle:bctls-fips	Maven	<1.0.19	1.0.19
org.bouncycastle:bcprov-lts8on	Maven	<2.73.6	2.73.6
org.bouncycastle:bcprov-jdk15on	Maven	>=1.61, <1.78	1.78

Identifiers: GHSA-4h8f-2wvx-gg5w · CVE-2024-34447
Weakness (CWE): CWE-297
Tags: Weak cryptography or TLS
Published: 3 May 2024
Updated: 10 Sept 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.9	Medium	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N	GitHub Advisory Database

CISA KEV Not listed.
EPSS 0.0077, the 56th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:17 UTC First seen by agentprime
31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.