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smolvm

v1.2.5 Security

This release includes 1 security fix for security teams reviewing exposed deployments.

Published 1mo Virtualization
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →
This release patches 1 known CVE

Topics

containers crun libkrun microvm rust virtual-machine

Affected surfaces

deps

Summary

AI summary

Updates net, registry, and test across a mixed release.

Full changelog

What's Changed

  • test: fix macOS portability + tmpfs/wrong-target test bugs; skip unimplemented TCP/53 DNS by @BinSquare in https://github.com/smol-machines/smolvm/pull/449
  • feat(net): serve DNS-over-TCP at the virtio-net gateway by @BinSquare in https://github.com/smol-machines/smolvm/pull/450
  • fix(api): supervisor PID start-time verification + non-blocking restart scheduling by @BinSquare in https://github.com/smol-machines/smolvm/pull/451
  • fix(registry): verify digest-addressed manifest content matches its digest by @BinSquare in https://github.com/smol-machines/smolvm/pull/452
  • fix(deps): patch quinn-proto DoS (RUSTSEC-2026-0185) + add cargo-audit CI gate by @BinSquare in https://github.com/smol-machines/smolvm/pull/453
  • refactor(fork): carry forkable/snapshot in LaunchFeatures, drop process-global env by @BinSquare in https://github.com/smol-machines/smolvm/pull/455
  • feat(serve): fork endpoint + per-VM uid isolation + seccomp/landlock hardening by @BinSquare in https://github.com/smol-machines/smolvm/pull/456
  • feat(embedded): forkable start + fork in embedded runtime; watchdog opt-out by @BinSquare in https://github.com/smol-machines/smolvm/pull/458
  • fix(run): local --image works with init; truthful image-ingest errors (#459) by @BinSquare in https://github.com/smol-machines/smolvm/pull/460
  • feat(net): custom DNS resolver (--dns) for TSI and virtio-net backends by @BinSquare in https://github.com/smol-machines/smolvm/pull/461
  • fix(registry): upload blobs in a single streamed request by @BinSquare in https://github.com/smol-machines/smolvm/pull/462
  • bump: v1.2.5 by @BinSquare in https://github.com/smol-machines/smolvm/pull/463

Full Changelog: https://github.com/smol-machines/smolvm/compare/v1.2.4...v1.2.5

Security Fixes

  • Patch quinn-proto DoS vulnerability (RUSTSEC-2026-0185)

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About smolvm

Tool to build & run portable, lightweight, self-contained virtual machines.

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Related context

Earlier breaking changes

  • v1.0.0 Remove built‑in store; VM now relies on host environment/files only.

Beta — feedback welcome: [email protected]