Yes. A tool that upgrades to the newest fixed version can land on a release that was published by an attacker or contains malicious code. You reduce the risk with a short wait before adopting brand new releases, checks on the new version, and a human reviewing what changed.
Why the newest fix is not always the safest
A fix pull request normally targets a version that includes the patch. If that version was published a few hours ago, nobody has had time to examine it. Malicious releases are often detected and removed within days, so a short delay avoids many of them.
GitHub's dependency update bot documents a cooldown option for this reason: it delays version updates by a configurable number of days, with separate settings for major, minor and patch. The docs state a default of three days for version updates, and say the default does not apply to security updates. That split makes sense, since you may not want to wait on a known exploited vulnerability, but it also means urgent fixes get less time to be vetted.
Layers that help
| Layer | What it does | Limit |
|---|---|---|
| Cooldown on routine updates | Lets the community spot bad releases | Not for urgent security fixes |
| Check the version's age and publisher change | Flags brand new or newly transferred packages | Needs data |
| Compare file contents with the previous version | Catches unexpected install scripts | Takes tooling |
| Review of the diff in the fix PR | A human looks for oddities | Only as good as the reviewer |
| Run builds in a restricted environment | Limits what a bad install script can do | Setup cost |
For the cooldown settings in detail, see delaying new releases.
What to do for urgent fixes
For an actively exploited vulnerability, the risk of waiting often exceeds the risk of a bad release. Handle it as an exception: take the fix, but add extra checks. Confirm the version is the one the advisory names, check who published it, and look at whether install scripts changed. Then watch the build for unexpected network calls.
What a reviewer should look for
- A new maintainer or a changed publisher on the package.
- New install or postinstall scripts.
- New dependencies added to a small package.
- A jump in size that the release notes do not explain.
Where Safeguard fits
Safeguard's SBOM and dependency scanning, policies and gates can help you check component data before a change merges, and autonomous remediation fix pull requests stay on Manual approval by default. A free scan shows what your tree contains today.
Quick check
Should security fixes also wait three days?
Usually not. Treat them as exceptions with extra checks, because the vulnerability may be actively exploited.
Does a cooldown replace review?
No. It lowers the odds of a bad release. Review still matters.
Sources
Last reviewed: 19 October 2026.
