Bug 2560322 (CVE-2026-114820)
| Summary: | CVE-2026-114820 OpenJDK: Distrust eMudhra intermediate CA certificates due to security concerns | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | unspecified | CC: | ahughes, fferrari, khosford, mtorre, pjindal, rhel-process-autobot, tfitzsim, watson-tool-maintainers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
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| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
The certificate authority (CA) store used in OpenJDK and Oracle Java included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued by the eMudhra certificate authority. A man-in-the-middle attacker could use this flaw to issue certificates for arbitrary host names signed by the weak intermediate CA certificates, which would be considered trusted by a TLS/SSL Java client applications and cause such applications to connect to malicious sites.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
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Description
OSIDB Bzimport
2026-10-24 18:51:20 UTC
OpenJDK upstream advisory: https://openjdk.org/groups/vulnerability/advisories/2026-10-24 It links the following mitigation instructions: https://openjdk.org/emudhra These instructions provide step-by-step guidance on how to remove affected root certificates from the CA bundled distributed with OpenJDK. Related commit seems to be: https://github.com/openjdk/jdk27u/commit/549d208fc7b77d4a356f241d09ab19e1048e204b which removes 4 root certificates related to eMudhra. Note that CVE-2026-91403 was previously assigned to eMudhra related fixes in Oracle Java and OpenJDK. Those fixes attempted to block only the intermediate CAs with weak private keys, but they were later found to be insufficient. This issue has been addressed in the following products: Red Hat Build of OpenJDK 21.0.12.1 Via RHSA-2026:88350 https://access.redhat.com/errata/RHSA-2026:88350 This issue has been addressed in the following products: Red Hat Build of OpenJDK 21.0.13 Via RHSA-2026:88351 https://access.redhat.com/errata/RHSA-2026:88351 This issue has been addressed in the following products: Red Hat Build of OpenJDK 25.0.5 Via RHSA-2026:88348 https://access.redhat.com/errata/RHSA-2026:88348 This issue has been addressed in the following products: Temurin Build of OpenJDK 25.0.4.1 Via RHSA-2026:90912 https://access.redhat.com/errata/RHSA-2026:90912 |