ClickHouse 26.8 · Version Status
ClickHouse 26.8 End of Life Date
ClickHouse 26.8 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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ClickHouse 26.8 is actively supported. EOL date: August 27, 2027.
📅 Get reminded before ClickHouse 26.8 reaches EOL on August 27, 2027 — alerts 90, 30 & 7 days out.
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EOL Date
Aug 27, 2027
361 days remaining
Latest Release
26.8.1.2041
LTS release
Release Date
Aug 27, 2026
ClickHouse 26.8 series
Lifecycle detail
ClickHouse 26.8 was released on August 27, 2026 and support is scheduled to end on August 27, 2027 — a planned supported lifespan of 1 year, in line with the 1 year median for ClickHouse LTS releases. It is a long-term support (LTS) release, so it carries a longer patch window than the interim releases around it. Its most recent patch is 26.8.1.2041, published August 30, 2026.
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 →
| Version | Latest | EOL Date | Status |
|---|
| 25.1 |
25.1.8.25 |
Apr 22, 2025 |
EOL |
| 25.2 |
25.2.2.39 |
May 22, 2025 |
EOL |
| 25.3 LTS |
25.3.14.14 |
Mar 20, 2026 |
EOL |
| 25.4 |
25.4.13.22 |
Jul 29, 2025 |
EOL |
| 25.5 |
25.5.11.15 |
Aug 29, 2025 |
EOL |
| 25.6 |
25.6.13.41 |
Sep 27, 2025 |
EOL |
| 25.7 |
25.7.8.71 |
Nov 1, 2025 |
EOL |
| 25.8 LTS |
25.8.33.6 |
Aug 29, 2026 |
EOL |
What does ClickHouse 26.8 end of life mean?
When ClickHouse 26.8 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 ClickHouse 26.8 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to ClickHouse 26.8 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does ClickHouse 26.8 reach end of life?
ClickHouse 26.8 reached end of life on August 27, 2027. That is 361 days remaining.
Is ClickHouse 26.8 still supported?
Yes, ClickHouse 26.8 is currently supported. The EOL date is August 27, 2027.
What should I upgrade to from ClickHouse 26.8?
The recommended upgrade from ClickHouse 26.8 is
ClickHouse 26.8 — the latest actively supported version. Check the
ClickHouse full timeline for all supported versions.
What are the security risks of running ClickHouse 26.8 past EOL?
When ClickHouse 26.8 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 ClickHouse should migrate immediately or implement compensating controls.