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Informational 13 Bitcoin

Merge rust-bitcoin/rust-bitcoin#6774: build(deps): bump actions/download-artifact from 7.0.0 to 8.0.1

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What the developer wrote

Authored by Andrew Poelstra

96/100 · Strong
Merge rust-bitcoin/rust-bitcoin#6774: build(deps): bump actions/download-artifact from 7.0.0 to 8.0.1

1d848840a0c231fb3881da98b07042122314b51d build(deps): bump actions/download-artifact from 7.0.0 to 8.0.1 (dependabot[bot])

Pull request description:

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 7.0.0 to 8.0.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/download-artifact/releases">actions/download-artifact's releases</a>.</em></p>
<blockquote>
<h2>v8.0.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Support for CJK characters in the artifact name by <a href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in <a href="https://redirect.github.com/actions/download-artifact/pull/471">actions/download-artifact#471</a></li>
<li>Add a regression test for artifact name + content-type mismatches by <a href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in <a href="https://redirect.github.com/actions/download-artifact/pull/472">actions/download-artifact#472</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/download-artifact/compare/v8...v8.0.1">https://github.com/actions/download-artifact/compare/v8...v8.0.1</a></p>
<h2>v8.0.0</h2>
<h2>v8 - What's new</h2>
<blockquote>
<p>[!IMPORTANT]
actions/download-artifact@v8 has been migrated to an ESM module. This should be transparent to the caller but forks might need to make significant changes.</p>
</blockquote>
<blockquote>
<p>[!IMPORTANT]
Hash mismatches will now error by default. Users can override this behavior with a setting change (see below).</p>
</blockquote>
<h3>Direct downloads</h3>
<p>To support direct uploads in <code>actions/upload-artifact</code>, the action will no longer attempt to unzip all downloaded files. Instead, the action checks the <code>Content-Type</code> header ahead of unzipping and skips non-zipped files. Callers wishing to download a zipped file as-is can also set the new <code>skip-decompress</code> parameter to <code>true</code>.</p>
<h3>Enforced checks (breaking)</h3>
<p>A previous release introduced digest checks on the download. If a download hash didn't match the expected hash from the server, the action would log a warning. Callers can now configure the behavior on mismatch with the <code>digest-mismatch</code> parameter. To be secure by default, we are now defaulting the behavior to <code>error</code> which will fail the workflow run.</p>
<h3>ESM</h3>
<p>To support new versions of the @actions/* packages, we've upgraded the package to ESM.</p>
<h2>What's Changed</h2>
<ul>
<li>Don't attempt to un-zip non-zipped downloads by <a href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in <a href="https://redirect.github.com/actions/download-artifact/pull/460">actions/download-artifact#460</a></li>
<li>Add a setting to specify what to do on hash mismatch and default it to <code>error</code> by <a href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in <a href="https://redirect.github.com/actions/download-artifact/pull/461">actions/download-artifact#461</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/download-artifact/compare/v7...v8.0.0">https://github.com/actions/download-artifact/compare/v7...v8.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/download-artifact/commit/3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c"><code>3e5f45b</code></a> Add regression tests for CJK characters (<a href="https://redirect.github.com/actions/download-artifact/issues/471">#471</a>)</li>
<li><a href="https://github.com/actions/download-artifact/commit/e6d03f67377d4412c7aa56a8e2e4988e6ec479dd"><code>e6d03f6</code></a> Add a regression test for artifact name + content-type mismatches (<a href="https://redirect.github.com/actions/download-artifact/issues/472">#472</a>)</li>
<li><a href="https://github.com/actions/download-artifact/commit/70fc10c6e5e1ce46ad2ea6f2b72d43f7d47b13c3"><code>70fc10c</code></a> Merge pull request <a href="https://redirect.github.com/actions/download-artifact/issues/461">#461</a> from actions/danwkennedy/digest-mismatch-behavior</li>
<li><a href="https://github.com/actions/download-artifact/commit/f258da9a506b755b84a09a531814700b86ccfc62"><code>f258da9</code></a> Add change docs</li>
<li><a href="https://github.com/actions/download-artifact/commit/ccc058e5fbb0bb2352213eaec3491e117cbc4a5c"><code>ccc058e</code></a> Fix linting issues</li>
<li><a href="https://github.com/actions/download-artifact/commit/bd7976ba57ecea96e6f3df575eb922d11a12a9fd"><code>bd7976b</code></a> Add a setting to specify what to do on hash mismatch and default it to <code>error</code></li>
<li><a href="https://github.com/actions/download-artifact/commit/ac21fcf45e0aaee541c0f7030558bdad38d77d6c"><code>ac21fcf</code></a> Merge pull request <a href="https://redirect.github.com/actions/download-artifact/issues/460">#460</a> from actions/danwkennedy/download-no-unzip</li>
<li><a href="https://github.com/actions/download-artifact/commit/15999bff51058bc7c19b50ebbba518eaef7c26c0"><code>15999bf</code></a> Add note about package bumps</li>
<li><a href="https://github.com/actions/download-artifact/commit/974686ed5098c7f9c9289ec946b9058e496a2561"><code>974686e</code></a> Bump the version to <code>v8</code> and add release notes</li>
<li><a href="https://github.com/actions/download-artifact/commit/fbe48b1d2756394be4cd4358ed3bc1343b330e75"><code>fbe48b1</code></a> Update test names to make it clearer what they do</li>
<li>Additional commits viewable in <a href="https://github.com/actions/download-artifact/compare/v7...3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c">compare view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/download-artifact&package-manager=github_actions&previous-version=7.0.0&new-version=8.0.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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</details>


ACKs for top commit:
apoelstra:
ACK 1d848840a0c231fb3881da98b07042122314b51d; successfully ran local tests


Tree-SHA512: 4bc6d5a95cee7c75aebcb92bc36c39b34c2b05948b2e6c36b679b812321076e3501191fb21d4641604e9366c25d05e4ff82a282d834fdff569395e50c6aa108c
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification✓ Links an issue, advisory, or supporting reference✓ Names security-relevant behavior explicitly
The short version

What changed, and why it matters

This is a routine update to a GitHub Actions helper used in one workflow. The change bumps the version of the action that downloads saved files (artifacts) during automated fuzzing tests. The new version makes the tool stricter about file integrity checks and changes how it handles compressed files. There is no direct evidence this fixes an active security problem in the rust-bitcoin project itself, but staying current with action versions is generally good maintenance hygiene.

Recommended action

Treat as routine maintenance. Verify the pinned commit hash 3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c matches the official actions/download-artifact v8.0.1 release. Review whether continue-on-error: true is still appropriate now that hash mismatches error by default, as it would silently ignore integrity failures. No urgent security response is indicated.

Security signals we found

01

CI dependency version bump

02

Upstream action now defaults hash-mismatch handling to error

03

Workflow uses continue-on-error: true, muting potential hash-mismatch failures

04

No source-code or cryptographic changes

Risk score

Why this scored 13/100

Our methodology →
Potential impact 2/30
Exploitability 2/25
Stealth signal 2/15
Affected reach 2/15
Confidence 3/10
Evidence quality 2/5
Human-validated context

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