The current version of Elasticsearch is 9.5.5 (as of 06/10/2026). patchletter checks the official source daily and emails you new releases.
Actively exploited vulnerabilities
The US cybersecurity agency CISA lists these vulnerabilities in its catalog of Known Exploited Vulnerabilities. What CISA does not carry does not appear in this list — even where it is being exploited.
- CVE-2015-1427Elasticsearch Groovy Scripting Engine Remote Code Execution Vulnerability
9.8 critical · over the network, without login · CISA deadline was 15 Apr 22
- CVE-2014-3120Elasticsearch Remote Code Execution Vulnerability
8.1 high · over the network, with a basic account · CISA deadline was 15 Apr 22
Source: CISA KEV. The CVE is matched to the product automatically — when in doubt, the linked NVD entry applies.
BSI security advisories
Advisories the German BSI (CERT-Bund) published for this product. Whether your version is affected is stated in the advisory itself.
- Elasticsearch: Mehrere Schwachstellen
WID-SEC-W-2026-2841 · 9 Oct
- Elasticsearch: Mehrere Schwachstellen
WID-SEC-W-2026-3784 · 7 Oct
- Elasticsearch: Mehrere Schwachstellen ermöglichen Denial of Service
WID-SEC-W-2026-3573 · 28 Sept
- Elasticsearch: Mehrere Schwachstellen
WID-SEC-W-2026-3131 · 9 Sept
- Elasticsearch und Kibana: Mehrere Schwachstellen
WID-SEC-W-2022-0029 · 1 Sept
- Apache Tika: Schwachstelle ermöglicht Infogewinn oder Manipulation
WID-SEC-W-2025-1883 · 11 Aug
- Elasticsearch: Mehrere Schwachstellen ermöglichen DoS und die Offenlegung von Informationen
WID-SEC-W-2026-2457 · 22 Jul
- Elasticsearch: Mehrere Schwachstellen ermöglichen Denial of Service
WID-SEC-W-2026-2180 · 15 Jul
Elasticsearch at a glance
Elasticsearch is a widely used search and analytics engine, often the heart of logging and search stacks. Elastic ships regular releases plus security fixes; as a data platform holding sensitive content, it deserves hardening and timely updates.
For admins updates within a major version are rolling and low-risk; major-version jumps follow a documented path with attention to deprecations and possible reindexing. Kibana tracks the same version. Regardless of patch level, the fundamentals: security features on (TLS, authentication), no open API access, and snapshots as backups — exposed Elasticsearch clusters have caused large data leaks. Check client and integration compatibility across versions. Following Elastic's licensing changes, some run the OpenSearch fork — if so, follow its line. Track the version and its support window.
Support cycles (endoflife.date)
| Cycle | Latest version | Status |
|---|---|---|
| 9.5 | 9.5.5 | supported |
| 9.4 | 9.4.8 | supported |
| 9.3 | 9.3.8 | End of Life |
| 9.2 | 9.2.8 | End of Life |
| 9.1 | 9.1.10 | End of Life |
| 8.19 | 8.19.23 | EOL 15 Jul 27 |
| 8.18 | 8.18.8 | End of Life |
| 9.0 | 9.0.8 | End of Life |
Version history & changelog · as detected by patchletter
| Version | Channel | Date | Notes |
|---|---|---|---|
| 9.5.5 | STABLE | 06/10/2026 | Release notes → |
| 9.5.4 | STABLE | 15/09/2026 | Release notes → |
| 9.5.3 | STABLE | 03/09/2026 | Release notes → |
| 9.5.2 | STABLE | 20/08/2026 | Release notes → |
| 9.5.1 | STABLE | 11/08/2026 | Release notes → |
| 9.4.5 | STABLE | 11/08/2026 | Release notes → |
| 9.4.4 | STABLE | 15/07/2026 | Release notes → |
| 9.4.3 | STABLE | 25/06/2026 | Release notes → |
Frequently asked questions
- What is the latest version of Elasticsearch?
- Elasticsearch 9.5.5, released 06/10/2026. patchletter checks the vendor's official source daily for new releases.
- Where can I find the Elasticsearch release notes?
- The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
- How do I get notified about new Elasticsearch updates?
- Tick Elasticsearch off in the catalogue and leave your address. From then on new versions go out by email — one at a time, or bundled in the daily or weekly digest.
An email as soon as a new Elasticsearch version ships
We reconcile the vendor source daily. When a new version appears, it lands in your inbox right away or bundled as a digest. The update email is free and ends with one click. Alerts about vulnerabilities and end of support are part of patchletter Pro.
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[](https://patchletter.com/en/software/elasticsearch)https://patchletter.com/badge/elasticsearch.svgAlso available: ?v=eol (end of support) and ?v=cve (actively exploited).
