CVE-2026-5588: org.bouncycastle:bcprov-jdk18on:jar:1.78.1:compile

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Summary

Use of a Broken or Risky Cryptographic Algorithm vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix on all (pkix modules), Legion of the Bouncy Castle Inc. BCPKIX-FIPS bcpkix on All (pkix modules), Legion of the Bouncy Castle Inc. BCPIX-LTS bcpkix on All (pkix modules).

This vulnerability is associated with program files JcaContentVerifierProviderBuilder.Java, JcaContentVerfierProviderBuilder.Java.

This issue affects BC-JAVA: from 1.67 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84; BCPKIX-FIPS: from 2.0.6 before 2.0.11, from 2.1.7 before 2.1.11; BCPIX-LTS: from 2.73.7 before 2.73.11.

CVE: CVE-2026-5588
CWE: CWE-327

References

• https://guide.sonatype.com/vulnerability/CVE-2026-5588?component-type=maven&component-name=org.bouncycastle%2Fbcprov-jdk18on&utm_source=ossindex-client&utm_medium=integration&utm_content=1.8.1
• http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2026-5588
• https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905588