Upstream information

CVE-2026-5588 at MITRE

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.

Other Security Trackers

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail SUSE
Base Score 5.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
CVSSv3 Version 3.1
CVSS v4 Scores
CVSS detail CNA (91579145-5d7b-4cc5-b925-a0262ff19630) SUSE
Base Score 6.3 6.3
Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Green CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Attack Vector Network Network
Attack Complexity Low Low
Attack Requirements Present Present
Privileges Required None None
User Interaction None None
Vulnerable System Confidentiality Impact Low Low
Vulnerable System Integrity Impact None None
Vulnerable System Availability Impact None None
Subsequent System Confidentiality Impact None None
Subsequent System Integrity Impact None None
Subsequent System Availability Impact None None
CVSSv4 Version 4.0 4.0
SUSE Bugzilla entry: 1262228 [NEW]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 bouncycastle Affected
SUSE Linux Enterprise Module for Development Tools 15 SP7 bouncycastle Affected
SUSE Linux Enterprise Server 15 SP7 bouncycastle Affected
SUSE Linux Enterprise Server 16.0 bouncycastle Affected
SUSE Linux Enterprise Server 16.1 bouncycastle Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 bouncycastle Affected
SUSE Linux Enterprise Server for SAP applications 16.0 bouncycastle Affected
SUSE Linux Enterprise Server for SAP applications 16.1 bouncycastle Affected
openSUSE Leap 15.6 bouncycastle Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4 bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP5 bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS bouncycastle Affected
SUSE Linux Enterprise Module for Development Tools 15 SP4 bouncycastle Affected
SUSE Linux Enterprise Module for Development Tools 15 SP5 bouncycastle Affected
SUSE Linux Enterprise Module for Development Tools 15 SP6 bouncycastle Affected
SUSE Linux Enterprise Server 15 SP4 bouncycastle Affected
SUSE Linux Enterprise Server 15 SP4-LTSS bouncycastle Affected
SUSE Linux Enterprise Server 15 SP5 bouncycastle Affected
SUSE Linux Enterprise Server 15 SP5-LTSS bouncycastle Affected
SUSE Linux Enterprise Server 15 SP6 bouncycastle Affected
SUSE Linux Enterprise Server 15 SP6-LTSS bouncycastle Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 bouncycastle Affected
SUSE Manager Proxy 4.3 bouncycastle Affected
SUSE Manager Retail Branch Server 4.3 bouncycastle Affected
SUSE Manager Server 4.3 bouncycastle Affected
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7 bouncycastle Affected
SUSE Enterprise Storage 7.1 bouncycastle Affected
SUSE Linux Enterprise Desktop 15 SP2 bouncycastle Affected
SUSE Linux Enterprise Desktop 15 SP3 bouncycastle Affected
SUSE Linux Enterprise Desktop 15 SP4 bouncycastle Affected
SUSE Linux Enterprise Desktop 15 SP5 bouncycastle Affected
SUSE Linux Enterprise Desktop 15 SP6 bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS bouncycastle Affected
SUSE Linux Enterprise High Performance Computing 15 SP6 bouncycastle Affected
SUSE Linux Enterprise Module for Development Tools 15 SP2 bouncycastle Affected
SUSE Linux Enterprise Module for Development Tools 15 SP3 bouncycastle Affected
SUSE Linux Enterprise Real Time 15 SP2 bouncycastle Affected
SUSE Linux Enterprise Real Time 15 SP3 bouncycastle Affected
SUSE Linux Enterprise Real Time 15 SP4 bouncycastle Affected
SUSE Linux Enterprise Server 15 SP2 bouncycastle Affected
SUSE Linux Enterprise Server 15 SP2-BCL bouncycastle Affected
SUSE Linux Enterprise Server 15 SP2-LTSS bouncycastle Affected
SUSE Linux Enterprise Server 15 SP3 bouncycastle Affected
SUSE Linux Enterprise Server 15 SP3-BCL bouncycastle Affected
SUSE Linux Enterprise Server 15 SP3-LTSS bouncycastle Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 bouncycastle Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 bouncycastle Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 bouncycastle Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 bouncycastle Affected
SUSE Manager Proxy 4.1 bouncycastle Affected
SUSE Manager Proxy 4.2 bouncycastle Affected
SUSE Manager Retail Branch Server 4.1 bouncycastle Affected
SUSE Manager Retail Branch Server 4.2 bouncycastle Affected
SUSE Manager Server 4.1 bouncycastle Affected
SUSE Manager Server 4.2 bouncycastle Affected
openSUSE Leap 15.3 bouncycastle Affected
openSUSE Leap 15.4 bouncycastle Affected
openSUSE Leap 15.5 bouncycastle Affected
Container Status
containers/apache-pulsar:3.3 bouncycastleAffected


SUSE Timeline for this CVE

CVE page created: Wed Apr 15 17:31:33 2026
CVE page last modified: Thu Apr 16 18:46:45 2026