Confluence 4.0 End of Life Date
Confluence 4.0 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.
Confluence 4.0 was released on September 15, 2011 and support ended on November 25, 2013 — a supported lifespan of 2 years and 2 months, in line with the 2 years median for Confluence releases. It was not an LTS release; Confluence reserves longer patch windows for its LTS versions. The last patch it will ever receive is 4.0.7, published May 14, 2012 — 1 year and 7 months before support ended. It has been without security patches for 12 years and 11 months. 64 newer Confluence releases have shipped since.
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When Confluence 4.0 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 Confluence 4.0 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Confluence 11.0 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.