Improper Certificate Validation in Bouncy Castle for Java and Bouncy Castle for Java LTS - CVE-2026-58062

Vulnerability identifier: #VU146450

CSH Severity: High

CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-58062

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass certificate status validation.

The vulnerability exists due to improper certificate validation in stapled OCSP response processing when accepting a response without binding it to the checked certificate. A remote attacker can supply a crafted stapled OCSP response to bypass certificate status validation.

Bouncy Castle for Java
Bouncy Castle for Java LTS
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
Development Tools Module
IBM Sterling Control Center
IBM Maximo Application Suite - Manage Component
Total Storage Service Console (TSSC) / TS4500 IMC
Rational Developer for i
ApplinX
bouncycastle-pkix
bouncycastle
bouncycastle-pg
bouncycastle-util

Install security update from vendor's website.

Bouncy Castle for Java - update to 1.85
Bouncy Castle for Java LTS - update to 2.73.12
IBM Sterling Control Center - addressed in versions 6.3.1.0.11, 6.4.2.0.7
IBM Maximo Application Suite - Manage Component - addressed in versions 9.0.29, 9.1.21, 9.2.2
Rational Developer for i - update to 9.9.0.6
bouncycastle-pkix - update to 1.85-150200.3.38.1
bouncycastle - update to 1.85-150200.3.38.1
bouncycastle-pg - update to 1.85-150200.3.38.1
bouncycastle-util - update to 1.85-150200.3.38.1

• https://www.openwall.com/lists/oss-security/2026/08/04/2
• https://www.bouncycastle.org/resources/new-release-bouncy-castle-java-1-85/

• Multiple vulnerabilities in Bouncy Castle Java
• SUSE update for bouncycastle
• Multiple vulnerabilities in IBM ApplinX
• Multiple vulnerabilities in IBM Maximo Application Suite - Manage Component
• Multiple vulnerabilities in IBM Rational Developer for i
• Multiple vulnerabilities in IBM Sterling Control Center
• Multiple vulnerabilities in Total Storage Service Console (TSSC) / TS4500 IMC