Oniguruma 5 · Version Status
Oniguruma 5 End of Life Date
Oniguruma 5 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Oniguruma 5 is past end of life. This version no longer receives security patches. 3652 days past EOL — migrate to a supported version immediately.
EOL Date
May 9, 2016
3652 days past EOL
Latest Release
5.9.6
Standard release
Release Date
Oct 19, 2006
Oniguruma 5 series
| Version | Latest | EOL Date | Status |
|---|
| → 5 |
5.9.6 |
May 9, 2016 |
EOL |
| 6 |
6.9.10 |
Apr 24, 2025 |
EOL |
What does Oniguruma 5 end of life mean?
When Oniguruma 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 Oniguruma 5 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to a supported version or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Oniguruma 5 reach end of life?
Oniguruma 5 reached end of life on May 9, 2016. This version is no longer receiving security patches.
Is Oniguruma 5 still supported?
No. Oniguruma 5 reached end of life on May 9, 2016 and is no longer receiving security patches.
What should I upgrade to from Oniguruma 5?
What are the security risks of running Oniguruma 5 past EOL?
When Oniguruma 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 Oniguruma should migrate immediately or implement compensating controls.