The short answer
- ubuntu:24.04 is 32 MB smaller unpacked on amd64 (81 MB vs 113 MB, 29% less).
- As a download, ubuntu:24.04 is 30 MB compressed against 42 MB for ubuntu:26.04: 1.4× less to pull.
- ubuntu:24.04 has fewer known vulnerabilities: 26 (0 critical or high) against 57 (4 critical or high) in ubuntu:26.04.
- 15 of ubuntu:26.04's 57 findings have a fixed version available upstream.
- 1 of ubuntu:24.04's 26 findings have a fixed version available upstream.
- Base OS: ubuntu:26.04 is built on Ubuntu 26.04; ubuntu:24.04 on Ubuntu 24.04.
- Packages detected: 98 in ubuntu:26.04, 92 in ubuntu:24.04.
- Filesystem layers: 2 vs 1.
| ubuntu:26.04 | ubuntu:24.04 | |
|---|---|---|
| Download, amd64 | 42 MB | 30 MB |
| Unpacked, amd64 | 113 MB | 81 MB |
| Download, arm64 | 41 MB | 29 MB |
| Base OS | Ubuntu 26.04 | Ubuntu 24.04 |
| Layers | 2 | 1 |
| Packages | 98 | 92 |
| Files | 4,322 | 2,560 |
| Known vulnerabilities | H 4M 48L 5 | M 22L 4 |
| Default user | root | root |
| Platforms | 6 | 6 |
| Last pushed | 3 days ago | 3 days ago |
Size
Compressed (download)Unpacked (on disk)
Vulnerabilities
CriticalHighMediumLowUnknown
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Highlighted cells are lower (smaller or fewer). Sizes from Docker Hub checked 2026-11-01; measurements and SBOMs from 2026-10-26 and 2026-10-26; vulnerability database 2026-11-01. Methodology.