Security Bulletin: Vulnerability affect underscore-umd-min, werkzeug-3.1.5, flask-3.1.1, cryptography, aircompressor, pyasn1, http, log4j, apache2-build, commons-configuration, bcpkix-jdk18on, server-MariaDB, Jline, IBM COS Systems (April 2026)

Summary Vulnerability with underscore-umd-min CVE-2026-27601, werkzeug-3.1.5 CVE-2026-27199, flask-3.1.1-py3-nCVE-2026-27205, cryptographyCVE-2026-26007, aircompressorCVE-2025-67721, pyasn1CVE-2026-23490, http, log4jCVE-2025-68161, apache2-buildCVE-2025-55753, commons-configurationCVE-2024-29131,...

ROOT-APP-MAVEN-CVE-2026-5588 CVE-2026-5588 in io.root.org.bouncycastle:bcpkix-jdk18on - Patched by Root

Root has patched CVE-2026-5588 in the io.root.org.bouncycastle:bcpkix-jdk18on package for Root:Maven. Multiple fixed versions available...

ROOT-APP-MAVEN-CVE-2025-8916 CVE-2025-8916 in io.root.org.bouncycastle:bcpkix-jdk18on - Patched by Root

Root has patched CVE-2025-8916 in the io.root.org.bouncycastle:bcpkix-jdk18on package for Root:Maven. Multiple fixed versions available...

CVE-2026-5588

A flaw was found in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix. The PKIX draft CompositeVerifier implementation improperly accepts an empty signature sequence as a valid cryptographic signature. This issue allows a remote attacker to bypass signature verification mechanisms, potentially...

SUSE CVE-2026-5588

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...

org.bouncycastle:bcjmail-debug-jdk18on (>=1.81 <=1.83), org.bouncycastle:bcmail-debug-jdk18on (>=1.81 <=1.83) +1 more potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-debug-jdk18on (>=1.81 <=1.83)

org.bouncycastle:bcpkix-debug-jdk18on MAVEN version =1.81, =1.81, =1.81, =1.81, =1.83 Source cves: CVE-2026-5588 Source advisory: OSV:GHSA-WG6Q-6289-32HP...

org.bouncycastle:bcmail-debug-jdk14 (>=1.81 <=1.83) potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-debug-jdk14 (>=1.81 <=1.83)

org.bouncycastle:bcpkix-debug-jdk14 MAVEN version =1.81, =1.81, =1.83 Source cves: CVE-2026-5588 Source advisory: OSV:GHSA-WG6Q-6289-32HP...

cn.hyperchain.javasdk:hyperchainsdk (>=4.2.1 <=4.2.3), com.github.WHUTzju:blockchainsdk (=4.1.3) +79 more potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-jdk14 (>=1.50 <=1.83)

org.bouncycastle:bcpkix-jdk14 MAVEN version =1.50, =4.2.1, =9.1.20, =2.0, =2.0, =2.0, =0.1.1, =1.0.1.0.20180504134220, =2.2, =2.0.1, =7.0, =1.5, =12.3, =1.2.0, =1.2.6 and more Source cves: CVE-2026-5588 Source advisory: OSV:GHSA-WG6Q-6289-32HP...

app.cash.trifle:common (>=0.2.9 <=0.2.10), app.cash.trifle:jvm (>=0.1.0 <=0.2.10) +1008 more potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-jdk15to18 (>=1.63 <=1.83)

org.bouncycastle:bcpkix-jdk15to18 MAVEN version =1.63, =0.2.9, =0.1.0, =0.2.1, =0.2.0, =1.0.0, =1.0.1, =0.2.0, =0.2.0, =3.5.0.0, =2.6.4, =2.6.4, =2.6.4, =2.6.4, =2.6.4, =0.1.1, =0.1.4.2 and more Source cves: CVE-2026-5588 Source advisory: OSV:GHSA-WG6Q-6289-32HP...

org.bouncycastle:bcjmail-debug-jdk15to18 (>=1.81 <=1.83), org.bouncycastle:bcmail-debug-jdk15to18 (>=1.81 <=1.83) potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-debug-jdk15to18 (>=1.81 <=1.83)

org.bouncycastle:bcpkix-debug-jdk15to18 MAVEN version =1.81, =1.81, =1.81, =1.83 Source cves: CVE-2026-5588 Source advisory: OSV:GHSA-WG6Q-6289-32HP...

org.bouncycastle:bcmail-debug-jdk14 (>=1.81 <=1.83), org.bouncycastle:bcpg-debug-jdk14 (>=1.81 <=1.83) +3 more potentially affected by CVE-2025-14813 via org.bouncycastle:bcprov-debug-jdk14 (>=1.81 <=1.83)

org.bouncycastle:bcprov-debug-jdk14 MAVEN version =1.81, =1.81, =1.81, =1.81, =1.81, =1.81, =1.83 Source cves: CVE-2025-14813 Source advisory: SNYK:JAVA-ORGBOUNCYCASTLE-16075261...

cn.hyperchain.javasdk:hyperchainsdk (>=4.2.1 <=4.2.3), com.github.WHUTzju:blockchainsdk (=4.1.3) +79 more potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-jdk14 (>=1.50 <=1.83)

org.bouncycastle:bcpkix-jdk14 MAVEN version =1.50, =4.2.1, =9.1.20, =2.0, =2.0, =2.0, =0.1.1, =1.0.1.0.20180504134220, =2.2, =2.0.1, =7.0, =1.5, =12.3, =1.2.0, =1.2.6 and more Source cves: CVE-2026-5588 Source advisory: SNYK:JAVA-ORGBOUNCYCASTLE-16075258...

org.bouncycastle:bcmail-debug-jdk14 (>=1.81 <=1.83) potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-debug-jdk14 (>=1.81 <=1.83)

org.bouncycastle:bcpkix-debug-jdk14 MAVEN version =1.81, =1.81, =1.83 Source cves: CVE-2026-5588 Source advisory: SNYK:JAVA-ORGBOUNCYCASTLE-16075255...

ai.driftkit:driftkit-context-engineering-spring-ai-starter (>=0.6.0 <=0.8.7), ai.driftkit:driftkit-context-engineering-spring-boot-starter (>=0.5.0 <=0.8.7) +9630 more potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-jdk18on (>=1.71 <=1.83)

org.bouncycastle:bcpkix-jdk18on MAVEN version =1.71, =0.6.0, =0.5.0, =0.7.0, =0.7.0, =0.5.0, =0.8.3, =0.8.3, =0.8.3, =0.5.0, =0.5.0, =3.10.0.5, =0.5.0, =1.2.4, =2023.12.01.210510-f61f157, =2023.12.01.210510-f61f157, =2026.05.28.162006-546becb and more Source cves: CVE-2026-5588 Source advisory:...

org.bouncycastle:bcjmail-debug-jdk18on (>=1.81 <=1.83), org.bouncycastle:bcmail-debug-jdk18on (>=1.81 <=1.83) +1 more potentially affected by CVE-2026-5588 via org.bouncycastle:bcpkix-debug-jdk18on (>=1.81 <=1.83)

org.bouncycastle:bcpkix-debug-jdk18on MAVEN version =1.81, =1.81, =1.81, =1.81, =1.83 Source cves: CVE-2026-5588 Source advisory: SNYK:JAVA-ORGBOUNCYCASTLE-16075257...

org.bouncycastle:bcjmail-debug-jdk15to18 (>=1.81 <=1.83), org.bouncycastle:bcmail-debug-jdk15to18 (>=1.81 <=1.83) +4 more potentially affected by CVE-2026-5598 via org.bouncycastle:bcprov-debug-jdk15to18 (>=1.81 <=1.83)

org.bouncycastle:bcprov-debug-jdk15to18 MAVEN version =1.81, =1.81, =1.81, =1.81, =1.81, =1.81, =1.81, =1.83 Source cves: CVE-2026-5598 Source advisory: SNYK:JAVA-ORGBOUNCYCASTLE-16074608...

Security Bulletin: IBM® Db2® Federated server is affected by a vulnerability in bcprov-jdk18on and bcpkix-jdk18on (CVE-2025-8916)

Summary IBM® Db2® Federated server is affected by a vulnerability in bcprov-jdk18on and bcpkix-jdk18on. Vulnerability Details CVEID:CVE-2025-8916 DESCRIPTION: Allocation of Resources Without Limits or Throttling vulnerability in Legion of the Bouncy Castle Inc. BC Java bcpkix on All API modules,...

EUVD-2025-24555

Malicious code in bioql PyPI...

SUSE CVE-2025-8916

Allocation of Resources Without Limits or Throttling vulnerability in Legion of the Bouncy Castle Inc. BC Java bcpkix on All API modules, Legion of the Bouncy Castle Inc. BC Java bcprov on All API modules, Legion of the Bouncy Castle Inc. BCPKIX FIPS bcpkix-fips on All API modules allows Excessiv...

ae.vigilancer.android-run-app:ae.vigilancer.android-run-app.gradle.plugin (>=1.0.1 <=1.0.2), aero.m-click:mcpdf (>=0.2.3 <=0.2.10) +21398 more potentially affected by CVE-2025-8916 via org.bouncycastle:bcpkix-jdk15on (>=1.47 <=1.70)

org.bouncycastle:bcpkix-jdk15on MAVEN version =1.47, =1.0.1, =0.2.3, =4.4.0.0, =0.1.12, =0.1.2, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.0, =0.5.24 and more Source cves: CVE-2025-8916 Source advisory: OSV:GHSA-4CX2-FC23-5WG6...