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

ALTO 7.5CVE-2026-5588 · GHSA-wg6q-6289-32hp · Published 15/04/2026 · updated 26/10/2026

Em resumo

CVE-2026-5588 é uma vulnerabilidade ALTO (CVSS 7.5) que afeta org.bouncycastle:bcpkix-debug-jdk14, org.bouncycastle:bcpkix-debug-jdk15to18, org.bouncycastle:bcpkix-debug-jdk18on.
Chance de exploração nos próximos 30 dias (EPSS): 0.78%, maior que 55.8% das vulnerabilidades.
Correção: atualize para 1.84 ou posterior.

Package	Affected versions	Patched versions
org.bouncycastle:bcpkix-debug-jdk14 Maven	`≥ 1.49, < 1.84`	`1.84`
org.bouncycastle:bcpkix-debug-jdk15to18 Maven	`≥ 1.49, < 1.84`	`1.84`
org.bouncycastle:bcpkix-debug-jdk18on Maven	`≥ 1.49, < 1.84`	`1.84`
org.bouncycastle:bcpkix-jdk14 Maven	`≥ 1.49, < 1.84`	`1.84`
org.bouncycastle:bcpkix-jdk15on Maven	`≥ 1.49, < 1.84`	`1.84`
org.bouncycastle:bcpkix-jdk15to18 Maven	`≥ 1.49, < 1.84`	`1.84`
org.bouncycastle:bcpkix-jdk18on Maven	`≥ 1.49, < 1.84`	`1.84`

Description

: 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.

NVD description

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.

References

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