Apache HttpComponents Core 5.1 · Version Status

Apache HttpComponents Core 5.1 End of Life Date

Apache HttpComponents Core 5.1 end-of-life date, support status, and CVE risk. Dates read at the vendor's own lifecycle pages (hc.apache.org); the source of each date is on the product page.

⚠ Apache HttpComponents Core 5.1 is past end of life. This version no longer receives security patches. Past EOL — migrate to a supported version immediately.
EOL Date
date not published
Past EOL
Latest Release
5.1.5
Standard release
Release Date
Mar 8, 2021
Apache HttpComponents Core 5.1 series
Where these dates come from
ReleaseMar 8, 2021Our catalog, built from the vendor pages · hc.apache.orgmedium · 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.
Spotted a date that disagrees with the vendor's own lifecycle page? Report it with the vendor's link → Every correction is published on the accuracy page.
Lifecycle detail

Apache HttpComponents Core 5.1 was released on March 8, 2021. Its most recent patch is 5.1.5, published November 9, 2022.

← Apache HttpComponents Client 4.5 All Apache HttpComponents versions Apache HttpComponents Client 5.1 →
45 / 100
Medium Risk
EOL Risk Score™  How is this calculated? →
EOL Recency
35/40
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 →
Recommended upgrade path
Apache HttpComponents Client 5.6
Latest release: 5.6.5 · EOL: Supported
View full Apache HttpComponents timeline →
Extended Support
Need Apache HttpComponents Core 5.1 patched past end of life?

Extended support for Apache HttpComponents exists: vetted vendors ship security patches past the official date. Right now that coverage spans Apache HttpComponents 5.1. Whether it covers Apache HttpComponents Core 5.1 is part of what we check. Leave an email and we reply within one business day with matched options and pricing guidance, or an honest "no vendor covers this version." Free, no obligation; vendors do not pay for placement.

All Apache HttpComponents Versions
VersionLatestEOL DateStatus
AsyncClient 4.1 4.1.5 Supported EOL
Core 4.4 4.4.16 EOL Active
Client 4.5 4.5.14 EOL Active
→ Core 5.1 5.1.5 Supported EOL
Client 5.1 5.1.4 Supported EOL
Core 5.4 5.4.4 EOL Active
Client 5.6 5.6.5 EOL Active

What does Apache HttpComponents Core 5.1 end of life mean?

When Apache HttpComponents Core 5.1 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 Apache HttpComponents Core 5.1 past its EOL date creates a growing attack surface that a clean scan result does not rule out.

Migrate to Apache HttpComponents Client 5.6 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.

Frequently Asked Questions
When does Apache HttpComponents Core 5.1 reach end of life?
Apache HttpComponents Core 5.1 has already reached end of life, though the vendor has not published an exact date.
Is Apache HttpComponents Core 5.1 still supported?
No. Apache HttpComponents Core 5.1 reached end of life on an unpublished date and is no longer receiving security patches.
What should I upgrade to from Apache HttpComponents Core 5.1?
The recommended upgrade from Apache HttpComponents Core 5.1 is Apache HttpComponents Client 5.6 — the latest actively supported version. Check the Apache HttpComponents full timeline for all supported versions.
What are the security risks of running Apache HttpComponents Core 5.1 past EOL?
Since Apache HttpComponents Core 5.1 reached end of life, the maintainers no longer issue 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 Apache HttpComponents should migrate immediately or implement compensating controls.
Data from the vendor's own lifecycle pages (hc.apache.org) · Generated at build time · How we source data →