Opensearch 1 · Version Status
Opensearch 1 End of Life Date
Opensearch 1 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Opensearch 1 is past end of life. This version no longer receives security patches. 368 days past EOL — migrate to a supported version immediately.
EOL Date
May 6, 2025
368 days past EOL
Latest Release
1.3.20
Standard release
Release Date
Jul 12, 2021
Opensearch 1 series
| Version | Latest | EOL Date | Status |
|---|
| → 1 |
1.3.20 |
May 6, 2025 |
EOL |
| 2 |
2.19.5 |
EOL |
Active |
| 3 |
3.6.0 |
EOL |
Active |
What does Opensearch 1 end of life mean?
When Opensearch 1 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Opensearch 1 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Opensearch 3 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Opensearch 1 reach end of life?
Opensearch 1 reached end of life on May 6, 2025. This version is no longer receiving security patches.
Is Opensearch 1 still supported?
No. Opensearch 1 reached end of life on May 6, 2025 and is no longer receiving security patches.
What should I upgrade to from Opensearch 1?
The recommended upgrade from Opensearch 1 is
Opensearch 3 — the latest actively supported version. Check the
Opensearch full timeline for all supported versions.
What are the security risks of running Opensearch 1 past EOL?
When Opensearch 1 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Opensearch should migrate immediately or implement compensating controls.