Red Hat OpenSSL Updates Fix CVE-2026-84782 on RHEL 9 and 10

P1 — VALIDATE AND UPDATEHigh · 7.4 (CVSS v3.1)EXPLOITATION: NOT STATED

Quick Answer

Red Hat published RHSA-2026:76918 and RHSA-2026:77396 for OpenSSL packages on RHEL 10 and RHEL 9. Inventory the exact affected scope, apply openssl 3.5.8-2.el10_2 or 3.5.8-2.el9_8 and the matching advisory-listed subpackages, validate dependent operations, and preserve change evidence.

Validate OpenSSL Scope And Apply The Supported Fix

What to do now: Inventory OpenSSL packages on RHEL 10 and RHEL 9, match versions and enabled features to the authority's scope, apply supported remediation, validate representative operations, and document exceptions.

Open the authoritative advisory

Last verified: 2026-10-08 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.

Scope And Authority

Product scopeOpenSSL packages on RHEL 10 and RHEL 9
AdvisoryRHSA-2026:76918 / RHSA-2026:77396
CVECVE-2026-84782
Authoritative release date2026-10-08 11:50:43 UTC
Authority revision date2026-10-08 14:24:13 UTC
Affected versionsThe exact entitled OpenSSL packages on RHEL 10 and RHEL 9 branches and package or image relationships identified by RHSA-2026:76918 and RHSA-2026:77396; compare installed NEVRAs or digests with the fixed content.
Fixed versionopenssl 3.5.8-2.el10_2 or 3.5.8-2.el9_8 and the matching advisory-listed subpackages
CVSS base score7.4 (CVSS v3.1)
CVSS severityHigh
Exploitation statusNot stated by the authority; no exploitation claim is inferred.

What Changed

Red Hat published authority-rated Important OpenSSL security content with branch-specific fixed packages or images for the listed CVEs.

What To Validate Now

  1. Inventory. Locate OpenSSL packages on RHEL 10 and RHEL 9; record versions, enabled features, exposure paths, owners, dependencies, support channels, and maintenance groups.
  2. Establish applicability. Compare every deployment with the authority's affected statement: The exact entitled OpenSSL packages on RHEL 10 and RHEL 9 branches and package or image relationships identified by RHSA-2026:76918 and RHSA-2026:77396; compare installed NEVRAs or digests with the fixed content. Do not infer applicability from product family, CVSS, or Internet reachability alone.
  3. Remediate. Apply openssl 3.5.8-2.el10_2 or 3.5.8-2.el9_8 and the matching advisory-listed subpackages through the authority-supported channel and follow the current advisory.
  4. Validate. Confirm the resulting OpenSSL build or managed state, exercise representative services and recovery paths, monitor for regressions, and retain the result.
  5. 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

Follow the entitled Red Hat repository and verify package or image relationships for the exact supported branch. Preserve pre-change state, installation output, logs, validation evidence, and rollback decisions.

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.