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

🗓️ 15 Apr 2026 18:31:54Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 5 Views

BC-JAVA bcpkix vulnerability allows broken cryptography and empty signature; affects 1.49–1.83.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Due to use of bcpkix-jdk18on-1.81.jar, IBM Sterling Connect:Direct Web Services is affected by Use of a Broken or Risky Cryptographic Algorithm vulnerability.
4 Jun 202602:55
–ibm
IBM Security Bulletins		Security Bulletin: There is a vulnerability in bcpkix-jdk18on-1.81.jar used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-5588)
29 May 202609:58
–ibm
IBM Security Bulletins		Security Bulletin: Maximo AI Service uses multiple third party dependencies which are vulnerable to multiple CVEs.
1 Jun 202608:35
–ibm
IBM Security Bulletins		Security Bulletin: IBM Sterling Connect:Direct for Microsoft Windows is vulnerable to an issue in Bouncy Castle
27 May 202615:07
–ibm
ATTACKERKB		CVE-2026-5588
15 Apr 202609:06
–attackerkb
Chainguard		CVE-2026-5588 vulnerabilities
17 Apr 202619:17
–cgr
Circl		CVE-2026-5588
15 Apr 202613:11
–circl
CNNVD		Bouncy Castle Java 安全漏洞
15 Apr 202600:00
–cnnvd
CVE		CVE-2026-5588
15 Apr 202609:06
–cve
Cvelist		CVE-2026-5588 PKIX draft CompositeVerifier accepts empty signature sequence as valid.
15 Apr 202609:06
–cvelist
Rows per page
Vulners
Node
org.bouncycastlebcpkix-debug-jdk14Range1.49–1.84maven
OR
org.bouncycastlebcpkix-debug-jdk15to18Range1.49–1.84maven
OR
org.bouncycastlebcpkix-debug-jdk18onRange1.49–1.84maven
OR
org.bouncycastlebcpkix-jdk14Range1.49–1.84maven
OR
org.bouncycastlebcpkix-jdk15onRange1.49–1.84maven
OR
org.bouncycastlebcpkix-jdk15to18Range1.49–1.84maven
OR
org.bouncycastlebcpkix-jdk18onRange1.49–1.84maven

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16 Apr 2026 21:32Current
5.8Medium risk
Vulners AI Score5.8
CVSS 46.3
EPSS0.00013
SSVC
CWE-327
bouncy castlejava librarybroken cryptographyempty signaturecomposite verifiervulnerable versions
5