Elastic Kibana Updates Address Authorization, Privilege, and Availability Risks
Tech GuruQuick Answer
The authority published ESA-2026-85 for Kibana 7.x, 8.x, and 9.x branches and features enumerated in ESA-2026-85, 103, 139, and 181. Elastic published four Kibana advisories covering Agent Builder confused-deputy privilege escalation, Timeline authorization bypass, cross-space Synthetics monitor deletion, and resource-consumption denial of service. Applicability depends on the exact version and feature configuration stated in each advisory. 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 Kibana 7.x, 8.x, and 9.x branches and features enumerated in ESA-2026-85, 103, 139, and 181, 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: 2026-09-26 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | Kibana 7.x, 8.x, and 9.x branches and features enumerated in ESA-2026-85, 103, 139, and 181 |
|---|---|
| Advisory | ESA-2026-85 / ESA-2026-103 / ESA-2026-139 / ESA-2026-181 |
| CVEs | CVE-2026-72662, CVE-2026-72668, CVE-2026-78582, CVE-2026-94400 |
| Authoritative release date | 2026-09-25 08:31:59 UTC |
| Authority revision date | No separate revision date published |
| Affected versions | Advisory-specific Kibana scope: ESA-2026-85 affects Agent Builder and Workflows in 9.4.0 through 9.4.6; ESA-2026-103 affects 8.0.0 through 8.19.21 and 9.4.0 through 9.4.5; ESA-2026-139 affects 7.12.0 through 7.17.29, 8.0.0 through 8.19.21, 9.0.0 through 9.4.6, and 9.5.0 through 9.5.2; ESA-2026-181 affects 8.0.0 through 8.19.21, 9.0.0 through 9.4.6, and 9.5.0 through 9.5.2. |
| Fixed version | the exact authority-listed branch release: Kibana 9.4.7 / 9.5.0 for ESA-2026-85; 8.19.22 / 9.4.6 for ESA-2026-103; and 8.19.22 / 9.4.7 / 9.5.3 for ESA-2026-139 and ESA-2026-181 |
| CVSS base score | 6.3 / 6.5 / 7.3 (official CVSS v3.1) |
| CVSS severity | Medium to High |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
Elastic published four Kibana advisories covering Agent Builder confused-deputy privilege escalation, Timeline authorization bypass, cross-space Synthetics monitor deletion, and resource-consumption denial of service. Applicability depends on the exact version and feature configuration stated in each advisory.
What To Validate Now
- Inventory. Locate Kibana 7.x, 8.x, and 9.x branches and features enumerated in ESA-2026-85, 103, 139, and 181 deployments, versions, enabled features, exposure paths, owners, and dependent services.
- Establish applicability. Compare each deployment with the authority's affected-version statement: Advisory-specific Kibana scope: ESA-2026-85 affects Agent Builder and Workflows in 9.4.0 through 9.4.6; ESA-2026-103 affects 8.0.0 through 8.19.21 and 9.4.0 through 9.4.5; ESA-2026-139 affects 7.12.0 through 7.17.29, 8.0.0 through 8.19.21, 9.0.0 through 9.4.6, and 9.5.0 through 9.5.2; ESA-2026-181 affects 8.0.0 through 8.19.21, 9.0.0 through 9.4.6, and 9.5.0 through 9.5.2. Do not infer applicability from product family or severity alone.
- Remediate. Apply the exact authority-listed branch release: Kibana 9.4.7 / 9.5.0 for ESA-2026-85; 8.19.22 / 9.4.6 for ESA-2026-103; and 8.19.22 / 9.4.7 / 9.5.3 for ESA-2026-139 and ESA-2026-181 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.
