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Bump step-security/harden-runner from 2.19.0 to 2.19.1#75

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whymarrh merged 1 commit intomainfrom
dependabot/github_actions/step-security/harden-runner-2.19.1
May 9, 2026
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Bump step-security/harden-runner from 2.19.0 to 2.19.1#75
whymarrh merged 1 commit intomainfrom
dependabot/github_actions/step-security/harden-runner-2.19.1

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@dependabot dependabot Bot commented on behalf of github May 8, 2026

Bumps step-security/harden-runner from 2.19.0 to 2.19.1.

Release notes

Sourced from step-security/harden-runner's releases.

v2.19.1

What's Changed

What the fix changes

  • Harden-Runner will detect ubuntu-slim runners and exit cleanly with an informational log message, instead of post harden runner step failing on chown: invalid user: 'undefined'.

What the fix does not do

  • Jobs running on ubuntu-slim will not be monitored by Harden-Runner. The agent relies on kernel-level features (that require elevated capabilities).
  • Per GitHub's docs on single-CPU runners: "The container for ubuntu-slim runners runs in unprivileged mode. This means that some operations requiring elevated privileges such as mounting file systems, using Docker-in-Docker, or accessing low-level kernel features are not supported." Those low-level kernel features are what the agent needs, so monitoring inside the unprivileged container is not feasible today.

For StepSecurity enterprise customers If your security posture requires that workflows are always monitored, you can block the use of ubuntu-slim via workflow run policies see the Runner Label Policy docs. This lets you enforce that jobs only run on monitored runner types.

New Contributors

Full Changelog: step-security/harden-runner@v2.19.0...v2.19.1

Commits
  • a5ad31d Merge pull request #657 from devantler/fix/ubuntu-slim-user-env
  • 6e92856 build dist and trim ubuntu-slim message
  • 4e0504e Merge branch 'main' into fix/ubuntu-slim-user-env
  • 376d25a fix: detect ubuntu-slim runners early and bail out
  • See full diff in compare view

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file github_actions Pull requests that update GitHub Actions code labels May 8, 2026
Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.19.0 to 2.19.1.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](step-security/harden-runner@8d3c67d...a5ad31d)

---
updated-dependencies:
- dependency-name: step-security/harden-runner
  dependency-version: 2.19.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot force-pushed the dependabot/github_actions/step-security/harden-runner-2.19.1 branch from 03018a6 to 165327f Compare May 9, 2026 13:55
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Thanks, buddy!

@whymarrh whymarrh merged commit 49fcc36 into main May 9, 2026
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@whymarrh whymarrh deleted the dependabot/github_actions/step-security/harden-runner-2.19.1 branch May 9, 2026 14:03
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