Lodash End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all Lodash versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 2 | 2.4.1 | Sep 14, 2013 | Jan 26, 2015 | 4181 days past EOL | EOL |
| 3 | 3.10.1 | Jan 26, 2015 | Jan 12, 2016 | 3830 days past EOL | EOL |
| 4 | 4.18.1 | Jan 12, 2016 | TBD | Supported | Active |
Lodash lifecycle status — the real story
Lodash is one of the most depended-upon packages in the JavaScript ecosystem — nearly 200,000 npm packages declare it as a dependency — and after several dormant years it resumed active maintenance: the 4.18 line shipped in 2026, including a fix for a code-injection flaw in _.template (CVE-2026-4800) that completed an incomplete 2021 patch.
Lodash's official policy is blunt: only the latest version of the current major line is supported. Versions 3.x and earlier have been end-of-life since January 2016, and the team explicitly offers no guarantee of fixes for anything older — their own version-support page points organizations that cannot upgrade toward commercial extended-support vendors.
Because lodash is so often a transitive dependency, EOL copies of 2.x and 3.x persist deep inside dependency trees long after direct dependencies were upgraded. Auditing the full lockfile, not just package.json, is the practical takeaway.
What does Lodash end of life mean for your organization?
When a version of Lodash reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL Lodash should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL Lodash versions. This is a bridge, not a permanent solution — plan your migration in parallel.
We work with vetted extended support vendors. Tell us what you need and we'll connect you with the right provider.
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