Red Hat Updates RHEL 9 Ruby Regular-Expression Handling
Tech GuruQuick Answer
Check Ruby on RHEL 9 Ruby packages, including the vendor-listed RHEL 9.8 EUS and SAP update products. Apply RHSA-2026:96067 from the matching entitled repository. Restart updated Ruby processes and verify representative regular-expression workloads, application health and the complete installed RPM version.
Confirm Scope And Apply The Supported Remediation
What to do now: Record distribution Ruby packages, regular-expression inputs, application owners and the precise RHEL 9 product entitlement. RHEL 9 Ruby packages, including the vendor-listed RHEL 9.8 EUS and SAP update products: installations of the Ruby packages requiring RHSA-2026:96067. Match the full installed RPM, architecture and repository to the vendor product tree; a universal upstream version range is not stated. Apply RHSA-2026:96067 through the entitled Red Hat repositories. The fixed source build is ruby-0:3.0.7-170.el9_8. Install the matching binary packages for the supported stream and architecture. Restart updated Ruby processes and verify representative regular-expression workloads, application health and the complete installed RPM version.
Last verified: 2026-11-09 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | RHEL 9 Ruby packages, including the vendor-listed RHEL 9.8 EUS and SAP update products; Ruby |
|---|---|
| Advisory | RHSA-2026:96067 |
| CVEs | CVE-2026-110264, CVE-2026-89078, CVE-2026-93577, CVE-2026-97229 |
| Authoritative release date | November 9, 2026 at 02:29:22 UTC, from Red Hat CSAF initial_release_date. |
| Authority revision date | Red Hat records the substantive last-updated version at 2026-11-09T02:29:22+00:00. The CSAF generation timestamp is 2026-11-09T02:29:58+00:00; generation alone is not a material advisory revision. |
| Affected versions | RHEL 9 Ruby packages, including the vendor-listed RHEL 9.8 EUS and SAP update products: installations of the Ruby packages requiring RHSA-2026:96067. Match the full installed RPM, architecture and repository to the vendor product tree; a universal upstream version range is not stated. |
| Fixed version | ruby-0:3.0.7-170.el9_8 |
| CVSS base score | 9.8 (highest authority-stated CVSS 3.1 base score) |
| CVSS severity | Critical (CVSS); Moderate (Red Hat impact) |
| Exploitation status | Red Hat does not state exploitation in this advisory.; no exploitation claim is inferred. |
Authority CVSS by Vulnerability
| CVE-2026-89078 | CVSS 3.1: 9.8 (Critical) |
|---|---|
| CVE-2026-93577 | CVSS 3.1: 9.8 (Critical) |
| CVE-2026-97229 | CVSS 3.1: 9.8 (Critical) |
| CVE-2026-110264 | CVSS 3.1: 9.8 (Critical) |
What Changed
Red Hat released RHSA-2026:96067 for RHEL 9 Ruby packages, including the vendor-listed RHEL 9.8 EUS and SAP update products, addressing double-free and integer-overflow flaws in regular-expression parsing and compilation. The update provides the distribution packages listed below; keep the Red Hat release and support channel matched during remediation.
What To Validate Now
- Inventory. Record distribution Ruby packages, regular-expression inputs, application owners and the precise RHEL 9 product entitlement.
- Establish applicability. RHEL 9 Ruby packages, including the vendor-listed RHEL 9.8 EUS and SAP update products: installations of the Ruby packages requiring RHSA-2026:96067. Match the full installed RPM, architecture and repository to the vendor product tree; a universal upstream version range is not stated.
- Remediate. Apply RHSA-2026:96067 through the entitled Red Hat repositories. The fixed source build is ruby-0:3.0.7-170.el9_8. Install the matching binary packages for the supported stream and architecture.
- Validate. Restart updated Ruby processes and verify representative regular-expression workloads, application health and the complete installed RPM version.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
The advisory topic names RHEL 9.8 EUS, while its affected-products table also lists RHEL 9 and SAP products. Match the exact vendor package table and entitlement. Red Hat impact is Moderate; the authority-stated CVSS score is Critical, and neither alone proves exploitation.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
Advisory facts are attributed to Red Hat Inc. The linked CSAF content is licensed under CC BY 4.0; TechGeeks operational guidance is summarized for this notice.
