MuleSoft Runtime 4.5 Edge End of Life Date
MuleSoft Runtime 4.5 Edge end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
MuleSoft Runtime 4.5 was released on October 31, 2023 and support ended on June 30, 2024 — a supported lifespan of 8 months, shorter than the 3 years median for MuleSoft Runtime releases. It was not an LTS release; MuleSoft Runtime reserves longer patch windows for its LTS versions. The last patch it will ever receive is 4.5.3, published February 22, 2024 — 4 months before support ended. It has been without security patches for 2 years and 2 months. 6 newer MuleSoft Runtime releases have shipped since.
Commercial vendors offer security patches beyond EOL. Compare your options.
Compare Options →| Version | Latest | EOL Date | Status |
|---|---|---|---|
| 3.8 LTS | 3.8.7 | Nov 16, 2021 | EOL |
| 3.9 LTS | 3.9.5-20240122 | Mar 20, 2024 | EOL |
| 4.1 | 4.1.6-20240112 | Nov 2, 2022 | EOL |
| 4.2 | 4.2.2-20221027 | May 2, 2023 | EOL |
| 4.3 | 4.3.0-20240424 | Mar 7, 2025 | EOL |
| 4.4 | 4.4.0-20250919 | Oct 8, 2025 | EOL |
| → 4.5 Edge | 4.5.3 | Jun 30, 2024 | EOL |
| 4.6 Edge | 4.6.22 | Oct 31, 2024 | EOL |
What does MuleSoft Runtime 4.5 Edge end of life mean?
When MuleSoft Runtime 4.5 Edge 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 MuleSoft Runtime 4.5 Edge past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to MuleSoft Runtime 4.12 Edge or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.