OpenSSL 4.1 · Version Status
OpenSSL 4.1 End of Life Date
OpenSSL 4.1 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
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OpenSSL 4.1 is actively supported. EOL date: November 30, 2027.
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EOL Date
Nov 30, 2027
400 days remaining
Latest Release
4.1.0
Standard release
Release Date
Oct 23, 2026
OpenSSL 4.1 series
Where these dates come from
End of lifeNov 30, 2027endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees ReleaseOct 23, 2026endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees Confidence: high = two or more independent sources agree (the vendor's page read by our adapter, a person's check against the vendor, the dataset the date came from); medium = one; low = the vendor page disagrees or our last read is stale.
How we source dates.
Lifecycle detail
OpenSSL 4.1 was released on October 23, 2026 and support is scheduled to end on November 30, 2027 — a planned supported lifespan of 1 year and 1 month, shorter than the 3 years and 1 month median for OpenSSL releases. It is not an LTS release; OpenSSL reserves longer patch windows for its LTS versions. Its most recent patch is 4.1.0, published October 23, 2026.
Attack Surface
30/30 Critical tier
CISA KEV Exposure
20/20 Named in CISA 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 →
| Version | Latest | EOL Date | Status |
|---|
| 0.9.8 |
0.9.8zh |
Dec 31, 2015 |
EOL |
| 1.0.0 |
1.0.0t |
Dec 31, 2015 |
EOL |
| 1.0.1 |
1.0.1u |
Dec 31, 2016 |
EOL |
| 1.0.2 LTS |
1.0.2u |
Dec 31, 2019 |
EOL |
| 1.1.0 |
1.1.0l |
Sep 11, 2019 |
EOL |
| 1.1.1 LTS |
1.1.1w |
Sep 11, 2023 |
EOL |
| 3.0 LTS |
3.0.22 |
Sep 7, 2026 |
EOL |
| 3.1 |
3.1.8 |
Mar 14, 2025 |
EOL |
What does OpenSSL 4.1 end of life mean?
When OpenSSL 4.1 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: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running OpenSSL 4.1 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to OpenSSL 4.1 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does OpenSSL 4.1 reach end of life?
OpenSSL 4.1 reaches end of life on November 30, 2027. That is 400 days remaining.
Is OpenSSL 4.1 still supported?
Yes, OpenSSL 4.1 is currently supported. The EOL date is November 30, 2027.
What should I upgrade to from OpenSSL 4.1?
The recommended upgrade from OpenSSL 4.1 is
OpenSSL 4.1 — the latest actively supported version. Check the
OpenSSL full timeline for all supported versions.
What are the security risks of running OpenSSL 4.1 past EOL?
When OpenSSL 4.1 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL OpenSSL should migrate immediately or implement compensating controls.