This release line addresses 4 security advisories.
Action required: Upgrade to undici 6.27.0 or later.
npm install undici@^6.27.0
Note on patched version: the v6 fixes shipped in v6.27.0, not 6.26.0
— v6.26.0 contains only the chunked-EOF fix (#5308) and the version bump, none
of the security fixes below.
The v6 line is not affected by the SOCKS5 advisories (GHSA-vmh5-mc38-953g,
GHSA-hm92-r4w5-c3mj), the shared-cache disclosure (GHSA-pr7r-676h-xcf6), or the
8.x-only WebSocket regression (GHSA-38rv-x7px-6hhq).
A malicious WebSocket server can stream a large number of small or empty
continuation frames. Undici enforced a limit on cumulative payload size but did
not limit the number of fragments per message, leading to unbounded memory
growth and denial of service. All releases from 6.17.0 onward are affected.
Affected: applications using new WebSocket(...) or WebSocketStream
against untrusted endpoints.
Workaround: none — upgrade is required.
Moderate severity
HTTP header injection via Set-Cookie percent-decoding — CVE-2026-9679
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🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.
## 📋 Pull Request Information
**Original PR:** https://github.com/joelwmale/webhook-action/pull/717
**Author:** [@dependabot[bot]](https://github.com/apps/dependabot)
**Created:** 6/23/2026
**Status:** 🔄 Open
**Base:** `master` ← **Head:** `dependabot/npm_and_yarn/multi-4c61c8eccf`
---
### 📝 Commits (1)
- [`42d3f89`](https://github.com/joelwmale/webhook-action/commit/42d3f893d9d47e5344ded291e96c16f072478216) build(deps): bump undici and @actions/github
### 📊 Changes
**3 files changed** (+235 additions, -246 deletions)
<details>
<summary>View changed files</summary>
📝 `package-lock.json` (+120 -124)
📝 `package.json` (+3 -3)
📝 `yarn.lock` (+112 -119)
</details>
### 📄 Description
Bumps [undici](https://github.com/nodejs/undici) to 6.27.0 and updates ancestor dependency [@actions/github](https://github.com/actions/toolkit/tree/HEAD/packages/github). These dependencies need to be updated together.
Updates `undici` from 6.26.0 to 6.27.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/nodejs/undici/releases">undici's releases</a>.</em></p>
<blockquote>
<h2>v6.27.0</h2>
<h1>⚠️ Security Release</h1>
<p>This release line addresses <strong>4 security advisories</strong>.</p>
<blockquote>
<p><strong>Action required:</strong> Upgrade to <strong>undici 6.27.0</strong> or later.</p>
<pre lang="sh"><code>npm install undici@^6.27.0
</code></pre>
</blockquote>
<blockquote>
<p><strong>Note on patched version:</strong> the v6 fixes shipped in <strong>v6.27.0</strong>, not <code>6.26.0</code>
— <code>v6.26.0</code> contains only the chunked-EOF fix (<a href="https://redirect.github.com/nodejs/undici/issues/5308">#5308</a>) and the version bump, none
of the security fixes below.</p>
</blockquote>
<p>The v6 line is <strong>not</strong> affected by the SOCKS5 advisories (GHSA-vmh5-mc38-953g,
GHSA-hm92-r4w5-c3mj), the shared-cache disclosure (GHSA-pr7r-676h-xcf6), or the
8.x-only WebSocket regression (GHSA-38rv-x7px-6hhq).</p>
<h2>Summary</h2>
<table>
<thead>
<tr>
<th>Advisory</th>
<th>CVE</th>
<th>Severity (CVSS)</th>
<th>Fixed in</th>
<th>Fix commit</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="https://github.com/nodejs/undici/security/advisories/GHSA-vxpw-j846-p89q">GHSA-vxpw-j846-p89q</a></td>
<td>CVE-2026-12151</td>
<td>High (7.5)</td>
<td>6.27.0</td>
<td><a href="https://github.com/nodejs/undici/commit/b7f252e7"><code>b7f252e7</code></a></td>
</tr>
<tr>
<td><a href="https://github.com/nodejs/undici/security/advisories/GHSA-p88m-4jfj-68fv">GHSA-p88m-4jfj-68fv</a></td>
<td>CVE-2026-9679</td>
<td>Moderate (5.9)</td>
<td>6.27.0</td>
<td><a href="https://github.com/nodejs/undici/commit/25efa447"><code>25efa447</code></a></td>
</tr>
<tr>
<td><a href="https://github.com/nodejs/undici/security/advisories/GHSA-g8m3-5g58-fq7m">GHSA-g8m3-5g58-fq7m</a></td>
<td>CVE-2026-11525</td>
<td>Low (3.7)</td>
<td>6.27.0</td>
<td><a href="https://github.com/nodejs/undici/commit/25efa447"><code>25efa447</code></a></td>
</tr>
<tr>
<td><a href="https://github.com/nodejs/undici/security/advisories/GHSA-35p6-xmwp-9g52">GHSA-35p6-xmwp-9g52</a></td>
<td>CVE-2026-6733</td>
<td>Low (3.7)</td>
<td>6.27.0</td>
<td><a href="https://github.com/nodejs/undici/commit/f4c31d60"><code>f4c31d60</code></a></td>
</tr>
</tbody>
</table>
<hr />
<h2>High severity</h2>
<h3>WebSocket DoS via fragment count bypass — CVE-2026-12151</h3>
<p><strong><a href="https://github.com/nodejs/undici/security/advisories/GHSA-vxpw-j846-p89q">GHSA-vxpw-j846-p89q</a></strong> · CWE-400, CWE-770
<strong>Fix:</strong> <a href="https://github.com/nodejs/undici/commit/b7f252e7"><code>b7f252e7</code></a> <em>Backport WebSocket maxPayloadSize fixes</em> (<a href="https://redirect.github.com/nodejs/undici/pull/5423">#5423</a>, backported to v6 in <a href="https://redirect.github.com/nodejs/undici/pull/5428">#5428</a>)</p>
<p>A malicious WebSocket server can stream a large number of small or empty
continuation frames. Undici enforced a limit on cumulative payload size but did
not limit the <em>number</em> of fragments per message, leading to unbounded memory
growth and denial of service. All releases from 6.17.0 onward are affected.</p>
<ul>
<li><strong>Affected:</strong> applications using <code>new WebSocket(...)</code> or <code>WebSocketStream</code>
against untrusted endpoints.</li>
<li><strong>Workaround:</strong> none — upgrade is required.</li>
</ul>
<hr />
<h2>Moderate severity</h2>
<h3>HTTP header injection via Set-Cookie percent-decoding — CVE-2026-9679</h3>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/nodejs/undici/commit/551138cbc1742c92242a68216167761075e8a82c"><code>551138c</code></a> Bumped v6.27.0 (<a href="https://redirect.github.com/nodejs/undici/issues/5431">#5431</a>)</li>
<li><a href="https://github.com/nodejs/undici/commit/b7f252e7c0841418fb9d95cd297bdd9fad9d2a53"><code>b7f252e</code></a> Backport WebSocket maxPayloadSize fixes to v7.x (<a href="https://redirect.github.com/nodejs/undici/issues/5423">#5423</a>) (<a href="https://redirect.github.com/nodejs/undici/issues/5428">#5428</a>)</li>
<li><a href="https://github.com/nodejs/undici/commit/25efa447997f74d5881edd144525c3fd7db945a4"><code>25efa44</code></a> fix(cookies): preserve values and parse SameSite strictly</li>
<li><a href="https://github.com/nodejs/undici/commit/f4c31d60c42d0385bca6ad602c112706b0695212"><code>f4c31d6</code></a> fix: guard idle socket validation to skip fresh sockets (<a href="https://redirect.github.com/nodejs/undici/issues/5400">#5400</a>)</li>
<li>See full diff in <a href="https://github.com/nodejs/undici/compare/v6.26.0...v6.27.0">compare view</a></li>
</ul>
</details>
<br />
Updates `@actions/github` from 7.0.0 to 9.1.1
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/actions/toolkit/blob/main/packages/github/RELEASES.md">@actions/github's changelog</a>.</em></p>
<blockquote>
<h3>9.1.1</h3>
<ul>
<li>Bump <code>undici</code> from <code>6.23.0</code> to <code>6.24.0</code> <a href="https://redirect.github.com/actions/toolkit/pull/2346">#2346</a></li>
</ul>
<h3>9.1.0</h3>
<ul>
<li>Append <code>actions_orchestration_id</code> to user-agent when the <code>ACTIONS_ORCHESTRATION_ID</code> environment variable is set <a href="https://redirect.github.com/actions/toolkit/pull/2364">#2364</a></li>
</ul>
<h3>9.0.0</h3>
<ul>
<li><strong>Breaking change</strong>: Package is now ESM-only
<ul>
<li>CommonJS consumers must use dynamic <code>import()</code> instead of <code>require()</code></li>
<li>Example: <code>const { getOctokit, context } = await import('@actions/github')</code></li>
</ul>
</li>
<li>Fix TypeScript compilation by migrating to ESM, enabling proper imports from <code>@octokit/core/types</code></li>
</ul>
<h3>8.0.1</h3>
<ul>
<li>Update <code>undici</code> to <code>6.23.0</code></li>
<li>Update <code>@actions/http-client</code> to <code>3.0.2</code></li>
</ul>
<h3>8.0.0</h3>
<ul>
<li>Update <a href="https://github.com/octokit"><code>@octokit</code></a> dependencies
<ul>
<li><code>@octokit/core</code> ^7.0.6</li>
<li><code>@octokit/plugin-paginate-rest</code> ^14.0.0</li>
<li><code>@octokit/plugin-rest-endpoint-methods</code> ^17.0.0</li>
<li><code>@octokit/request</code> ^10.0.7</li>
<li><code>@octokit/request-error</code> ^7.1.0</li>
</ul>
</li>
<li><strong>Breaking change</strong>: Minimum Node.js version is now 20 (previously 18)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a href="https://github.com/actions/toolkit/commits/HEAD/packages/github">compare view</a></li>
</ul>
</details>
<br />
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[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
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You can disable automated security fix PRs for this repo from the [Security Alerts page](https://github.com/joelwmale/webhook-action/network/alerts).
</details>
---
<sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
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📋 Pull Request Information
Original PR: https://github.com/joelwmale/webhook-action/pull/717
Author: @dependabot[bot]
Created: 6/23/2026
Status: 🔄 Open
Base:
master← Head:dependabot/npm_and_yarn/multi-4c61c8eccf📝 Commits (1)
42d3f89build(deps): bump undici and @actions/github📊 Changes
3 files changed (+235 additions, -246 deletions)
View changed files
📝
package-lock.json(+120 -124)📝
package.json(+3 -3)📝
yarn.lock(+112 -119)📄 Description
Bumps undici to 6.27.0 and updates ancestor dependency @actions/github. These dependencies need to be updated together.
Updates
undicifrom 6.26.0 to 6.27.0Release notes
Sourced from undici's releases.
... (truncated)
Commits
551138cBumped v6.27.0 (#5431)b7f252eBackport WebSocket maxPayloadSize fixes to v7.x (#5423) (#5428)25efa44fix(cookies): preserve values and parse SameSite strictlyf4c31d6fix: guard idle socket validation to skip fresh sockets (#5400)Updates
@actions/githubfrom 7.0.0 to 9.1.1Changelog
Sourced from @actions/github's changelog.
Commits
Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase.Dependabot commands and options
You can trigger Dependabot actions by commenting on this PR:
@dependabot rebasewill rebase this PR@dependabot recreatewill recreate this PR, overwriting any edits that have been made to it@dependabot show <dependency name> ignore conditionswill show all of the ignore conditions of the specified dependency@dependabot ignore this major versionwill close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)@dependabot ignore this minor versionwill close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)@dependabot ignore this dependencywill close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)You can disable automated security fix PRs for this repo from the Security Alerts page.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.