Red Hat rsyslog Updates Fix an RHEL Denial of Service
Tech GuruQuick Answer
The authority published RHSA-2026:69541 for Supported RHEL 9 and RHEL 10 rsyslog packages. Red Hat released rsyslog updates with branch-specific fixed packages for the listed CVEs. Affected deployments should be matched to the authority's exact scope and moved to the supported fixed release.
Confirm Scope And Apply The Supported Fix
What to do now: Inventory Supported RHEL 9 and RHEL 10 rsyslog packages, match the exact affected release or feature, apply the authority-supported fixed build or service remediation, validate the dependent workflow, and preserve evidence.
Last verified: 2026-09-22 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | Supported RHEL 9 and RHEL 10 rsyslog packages |
|---|---|
| Advisory | RHSA-2026:69541 / RHSA-2026:69540 |
| CVE | CVE-2026-78002 |
| Authoritative release date | 2026-09-21 20:19:51 UTC |
| Authority revision date | 2026-09-22 03:40:03 UTC |
| Affected versions | The exact entitled Supported RHEL 9 and RHEL 10 rsyslog packages builds before the branch-specific fixed package listed by Red Hat. |
| Fixed version | rsyslog 8.2510.0-2.el9_8.2 and 8.2510.0-5.el10_2.2 |
| CVSS base score | 7.5 (CVSS v3.1) |
| CVSS severity | High |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
Red Hat released rsyslog updates with branch-specific fixed packages for the listed CVEs.
What To Validate Now
- Inventory. Locate Supported RHEL 9 and RHEL 10 rsyslog packages deployments, versions, enabled features, exposure paths, owners, and dependent services.
- Establish applicability. Compare each deployment with the authority's affected-version statement: The exact entitled Supported RHEL 9 and RHEL 10 rsyslog packages builds before the branch-specific fixed package listed by Red Hat. Do not infer applicability from product family or severity alone.
- Remediate. Apply rsyslog 8.2510.0-2.el9_8.2 and 8.2510.0-5.el10_2.2 through the supported vendor or project channel, following the current advisory and change-control requirements.
- Validate. Confirm the resulting version or managed-service state, exercise representative functionality and recovery paths, monitor for regressions, and document exceptions.
- 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
Use the exact supported release stream and repository. Test dependencies, clusters, integrations, and rollback before broad deployment; a CVSS rating or reachable feature is not evidence of 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.
