Apache Solr 5 · Version Status
Apache Solr 5 End of Life Date
Apache Solr 5 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Apache Solr 5 is past end of life. This version no longer receives security patches. 3164 days past EOL — migrate to a supported version immediately.
EOL Date
Oct 24, 2017
3164 days past EOL
Latest Release
5.5.5
Standard release
Release Date
Feb 19, 2015
Apache Solr 5 series
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Apache Solr 5 support is available
Commercial vendors offer security patches beyond EOL — compare your options.
Compare Options →
| Version | Latest | EOL Date | Status |
|---|
| 1 |
1.4.1 |
Supported |
Active |
| 3 |
3.6.2 |
Supported |
Active |
| 4 |
4.10.4 |
Supported |
Active |
| → 5 |
5.5.5 |
Oct 24, 2017 |
EOL |
| 6 |
6.6.6 |
Mar 13, 2019 |
EOL |
| 7 |
7.7.3 |
May 11, 2022 |
EOL |
| 8 |
8.11.4 |
Oct 25, 2024 |
EOL |
| 9 |
9.10.1 |
EOL |
Active |
What does Apache Solr 5 end of life mean?
When Apache Solr 5 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 Apache Solr 5 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Apache Solr 10 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Apache Solr 5 reach end of life?
Apache Solr 5 reached end of life on October 24, 2017. This version is no longer receiving security patches.
Is Apache Solr 5 still supported?
No. Apache Solr 5 reached end of life on October 24, 2017 and is no longer receiving security patches.
What should I upgrade to from Apache Solr 5?
The recommended upgrade from Apache Solr 5 is
Apache Solr 10 — the latest actively supported version. Check the
Apache Solr full timeline for all supported versions.
What are the security risks of running Apache Solr 5 past EOL?
When Apache Solr 5 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 Apache Solr should migrate immediately or implement compensating controls.