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security: harden CI actions and subprocess calls#34247

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RinZ27 wants to merge 2 commits intobitcoin:masterfrom
RinZ27:security-hardening-ci-scripts
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security: harden CI actions and subprocess calls#34247
RinZ27 wants to merge 2 commits intobitcoin:masterfrom
RinZ27:security-hardening-ci-scripts

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@RinZ27
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@RinZ27 RinZ27 commented Jan 10, 2026

Harden several CI and deployment scripts against potential injection vectors.

Changes

  • .github/actions/configure-docker/action.yml: Migrated direct github context interpolation to intermediate environment variables to prevent potential script injection from untrusted context data.
  • contrib/macdeploy/macdeployqtplus: Refactored the codesign subprocess call to use shell=False and list-based arguments. Fixed several linting issues (E401, F841).
  • contrib/verify-binaries/verify.py:
    • Replaced wget with urllib.request for file retrieval, enforcing HTTP(S) protocols to mitigate potential LFI risks.
    • Fixed a bug in verify_with_gpg where an empty string was passed to the --output argument when no output file was specified.
    • Removed unused imports and cleaned up code.
  • contrib/verify-binaries/test.py: Updated run_verify to execute via shell=False.

These changes reduce the attack surface for command injection in automated environments and local deployment scripts while improving code quality and reliability.

@DrahtBot
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DrahtBot commented Jan 10, 2026

The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

Code Coverage & Benchmarks

For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/34247.

Reviews

See the guideline for information on the review process.
A summary of reviews will appear here.

Conflicts

Reviewers, this pull request conflicts with the following ones:

  • #33592 (contrib: remove deprecated --deep signing from macdeployqtplus by amishhaa)
  • #29700 (kernel, refactor: return error status on all fatal errors by ryanofsky)
  • #26022 (Add util::ResultPtr class by ryanofsky)
  • #25722 (refactor: Use util::Result class for wallet loading by ryanofsky)

If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

@RinZ27 RinZ27 requested a review from maflcko January 10, 2026 13:37
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🚧 At least one of the CI tasks failed.
Task lint: https://github.com/bitcoin/bitcoin/actions/runs/20878966878/job/60007136878
LLM reason (✨ experimental): Lint Python code: unused import urllib.error detected by ruff causing lint check to fail.

Hints

Try to run the tests locally, according to the documentation. However, a CI failure may still
happen due to a number of reasons, for example:

  • Possibly due to a silent merge conflict (the changes in this pull request being
    incompatible with the current code in the target branch). If so, make sure to rebase on the latest
    commit of the target branch.

  • A sanitizer issue, which can only be found by compiling with the sanitizer and running the
    affected test.

  • An intermittent issue.

Leave a comment here, if you need help tracking down a confusing failure.

@RinZ27 RinZ27 force-pushed the security-hardening-ci-scripts branch from a60858a to dc28f66 Compare January 11, 2026 09:44
@RinZ27 RinZ27 force-pushed the security-hardening-ci-scripts branch 2 times, most recently from 2e29a10 to a001b4c Compare January 14, 2026 04:16
@RinZ27 RinZ27 force-pushed the security-hardening-ci-scripts branch from ce44dab to ecef655 Compare January 14, 2026 08:23
@DrahtBot
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🚧 At least one of the CI tasks failed.
Task lint: https://github.com/bitcoin/bitcoin/actions/runs/20982150602/job/60321919489
LLM reason (✨ experimental): Lint checks failed due to trailing whitespace and missing trailing newline detected by ruff.

Hints

Try to run the tests locally, according to the documentation. However, a CI failure may still
happen due to a number of reasons, for example:

  • Possibly due to a silent merge conflict (the changes in this pull request being
    incompatible with the current code in the target branch). If so, make sure to rebase on the latest
    commit of the target branch.

  • A sanitizer issue, which can only be found by compiling with the sanitizer and running the
    affected test.

  • An intermittent issue.

Leave a comment here, if you need help tracking down a confusing failure.

@RinZ27
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RinZ27 commented Jan 14, 2026

Fixed the linting issues (E401, F841, F821) in macdeployqtplus and verify.py. The lint job should pass now.

Harden GitHub Actions workflows and CI python scripts by avoiding direct embedding of untrusted GitHub context variables in shell scripts and preventing arbitrary command execution in container setup. Fixed several linting issues in contrib scripts and ensured proper checkout of merge commits for PR linting.
@RinZ27 RinZ27 force-pushed the security-hardening-ci-scripts branch from deec35f to a89391d Compare January 19, 2026 14:41
Comment on lines -111 to +125
def download_with_wget(remote_file, local_file):
result = subprocess.run(['wget', '-O', local_file, remote_file],
stderr=subprocess.STDOUT, stdout=subprocess.PIPE)
return result.returncode == 0, result.stdout.decode().rstrip()
def download_with_urllib(url, local_file):
"""Download a file over HTTP(S) using urllib."""
if not url.startswith(("http://", "https://")):
log.warning(f"Refusing to fetch non-HTTP(S) URL: {url}")
return False, "Refused non-HTTP(S) URL"

try:
with urllib.request.urlopen(url) as response, open(local_file, 'wb') as out_file:
shutil.copyfileobj(response, out_file)
return True, ""
except HTTPError as e:
return False, f"HTTPError: {e}"
except Exception as e:
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none of the diff in this file makes any sense and contradicts even the pull request description.

@maflcko
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maflcko commented Jan 20, 2026

Closing. This is an LLM bot producing ai slop.

The hardening itself seems fine as a style cleanup, but all inputs are trusted anyway, so there is no rush in fixing this.

However, if someone fixes this, it should be done by a human and not by a bot that produces slop.

@maflcko maflcko closed this Jan 20, 2026
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maflcko commented Jan 20, 2026

This also conflicts with pulls that remove the code: #33592 (contrib: remove deprecated --deep signing from macdeployqtplus by amishhaa)

There is probably little value in changing code that is proposed to be deleted.

@RinZ27 RinZ27 deleted the security-hardening-ci-scripts branch January 20, 2026 13:02
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3 participants