GHSA-wg6q-6289-32hp

ghsaUSosv

Bouncy Castle Crypto Package For Java: Use of a Broken or Risky Cryptographic Algorithm vulnerability in bcpkix modules

view advisory published 2026-04-15Licence: CC-BY-4.0

: Use of a Broken or Risky Cryptographic Algorithm vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix on all (pkix modules). PKIX draft CompositeVerifier accepts empty signature sequence as valid. This issue affects BC-JAVA: from 1.49 before 1.84.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-5588US	—OT elevated	0.78% (56th)	—	2026-04-15
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-FIP…

references

External citations — patches, advisories, analysis.

https://github.com/bcgit/bc-javaPACKAGE
https://github.com/bcgit/bc-java/commit/656bae0dbd9b1521f840521ff786e78749fe3057WEB
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905588WEB
https://nvd.nist.gov/vuln/detail/CVE-2026-5588ADVISORY

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