CVE Vulnerabilities

CVE-2026-91461

Improper Certificate Validation

Published: Oct 20, 2026 | Modified: Oct 24, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
3.7 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Ubuntu
MEDIUM

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

NameVendorStart VersionEnd Version
Red Hat Build of OpenJDK 17.0.21RedHatjava-17-openjdk-portable*
Red Hat Enterprise Linux 10RedHatjava-25-openjdk-1:25.0.5.0.8-1.0.el10*
Red Hat Enterprise Linux 8RedHatjava-17-openjdk-1:17.0.21.0.9-2.1.el8*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatjava-17-openjdk-1:17.0.21.0.9-2.1.el8*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHatjava-17-openjdk-1:17.0.21.0.9-2.1.el8*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatjava-17-openjdk-1:17.0.21.0.9-2.1.el8*
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRedHatjava-17-openjdk-1:17.0.21.0.9-2.1.el8*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatjava-17-openjdk-1:17.0.21.0.9-2.1.el8*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatjava-17-openjdk-1:17.0.21.0.9-2.1.el8*
Red Hat Enterprise Linux 9RedHatjava-25-openjdk-1:25.0.5.0.8-1.0.el9*
Openjdk-13Ubuntuesm-apps/focal*
Openjdk-16Ubuntuesm-apps/focal*
Openjdk-18Ubuntujammy*
Openjdk-27Ubuntuupstream*
Openjdk-9Ubuntuesm-apps-legacy/xenial*

Potential Mitigations

References