Calico 3.26 · Version Status
Calico 3.26 End of Life Date
Calico 3.26 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
⚠
Calico 3.26 is past end of life. This version no longer receives security patches. 728 days past EOL — migrate to a supported version immediately.
EOL Date
May 11, 2024
728 days past EOL
Latest Release
3.26.5
Standard release
Release Date
May 27, 2023
Calico 3.26 series
| Version | Latest | EOL Date | Status |
|---|
| 3.25 |
3.25.2 |
Dec 15, 2023 |
EOL |
| → 3.26 |
3.26.5 |
May 11, 2024 |
EOL |
| 3.27 |
3.27.5 |
Oct 29, 2024 |
EOL |
| 3.28 |
3.28.5 |
May 5, 2025 |
EOL |
| 3.29 |
3.29.7 |
Oct 21, 2025 |
EOL |
| 3.30 |
3.30.7 |
EOL |
Active |
| 3.31 |
3.31.5 |
EOL |
Active |
What does Calico 3.26 end of life mean?
When Calico 3.26 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 Calico 3.26 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Calico 3.31 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Calico 3.26 reach end of life?
Calico 3.26 reached end of life on May 11, 2024. This version is no longer receiving security patches.
Is Calico 3.26 still supported?
No. Calico 3.26 reached end of life on May 11, 2024 and is no longer receiving security patches.
What should I upgrade to from Calico 3.26?
The recommended upgrade from Calico 3.26 is
Calico 3.31 — the latest actively supported version. Check the
Calico full timeline for all supported versions.
What are the security risks of running Calico 3.26 past EOL?
When Calico 3.26 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 Calico should migrate immediately or implement compensating controls.