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chore(deps): bump undici and testcontainers - #504

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chore(deps): bump undici and testcontainers#504
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Bumps undici to 8.12.3 and updates ancestor dependency testcontainers. These dependencies need to be updated together.

Updates undici from 5.29.0 to 8.12.3

Release notes

Sourced from undici's releases.

v8.12.3

What's Changed

New Contributors

Full Changelog: nodejs/undici@v8.12.2...v8.12.3

v8.12.2

Security fixes

High severity

Denial of service via TLS 1.2 certificate-changing renegotiation

CVE-2026-87018 · GHSA-qrxm-fqhp-jwvm

A malicious or compromised HTTPS server could crash the Node.js process by initiating TLS 1.2 renegotiation and presenting a different, CA-trusted certificate whose hostname did not match the requested host. The resulting socket error reached an assertion in undici's HTTP/1.1 and HTTP/2 connection handling. This release handles post-connect certificate errors without terminating the process.

TLS certificate validation bypass through dropped Agent options

CVE-2026-109383 · GHSA-2m5v-pch6-74hx

Agent used a JSON-based clone for constructor options, which silently removed function-valued TLS options such as checkServerIdentity. Applications relying on custom certificate or public-key verification could therefore accept a certificate that the callback was intended to reject. This release preserves TLS options when creating per-origin dispatchers.

Cache poisoning and cross-user disclosure through cross-origin redirects

CVE-2026-109829 · GHSA-4w7w-5xrc-9h26

When an originless Agent combined redirect and shared-cache interceptors as compose(redirect(), cache()), a response from a cross-origin redirect could be stored under the original URL. This could allow persistent cache poisoning or disclosure of user-specific responses to later callers. This release verifies the response origin before caching and preserves redirect-hop cache-control policy.

Denial of service through excessive Content-Encoding values

CVE-2026-109869 · GHSA-xjj6-f33q-929c

A malicious HTTP server could crash the Node.js process by returning more than five content codings and closing the connection before sending the body. Although fetch() rejected the response, an error from an orphaned internal stream could remain unhandled. This release validates the content-encoding chain before creating the body stream and aborts oversized chains safely.

Medium severity

Denial of service through the decompress interceptor

CVE-2026-87029 · GHSA-55wc-3pg8-jfw6

... (truncated)

Commits
  • ff9cc5e Bumped v8.12.3 (#6053)
  • 0bbf614 fix(pool): keep caller async context for queued requests (#5982)
  • aa1eef1 fix(h2): replace a connection that stops responding after a stream timeout (#...
  • e34b872 docs: document the options of interceptors.cache() (#6050)
  • e8f3423 build(deps-dev): bump eslint from 9.39.4 to 10.12.0 (#5967)
  • b777e40 build(deps-dev): bump neostandard from 0.13.0 to 0.14.0 (#6006)
  • 43700ff ci: use Python 3.14 for the WPT server on macOS (#6029)
  • bb6cc0a Bumped v8.12.2 (#6021)
  • b217373 fix(websocket): bound automatic PONG writes under backpressure
  • 789ef26 fix(eventsource): bound retained SSE parser state
  • Additional commits viewable in compare view
Maintainer changes

This version was pushed to npm by GitHub Actions, a new releaser for undici since your current version.

Install script changes

This version modifies prepare script that runs during installation. Review the package contents before updating.


Updates testcontainers from 10.28.0 to 12.2.1

Release notes

Sourced from testcontainers's releases.

v12.2.1

Changes

🐛 Bug Fixes

🧹 Maintenance

📦 Dependency Updates

v12.2.0

Changes

🚀 Features

... (truncated)

Commits
  • 17316db Add a write-code skill for code conventions (#1517)
  • 8b50145 Replace hand-rolled stream handling with Node stream built-ins (#1566)
  • 7cd3499 Wait for Couchbase KV readiness before start resolves (#1514)
  • b04687c Let agents commit and open draft PRs on request (#1586)
  • 54e14da Exclude agent worktrees from Vitest runs (#1515)
  • ca322f1 Bump the dependencies group across 1 directory with 15 updates (#1503)
  • 22057fd Allow knip updates and remove the redundant Firestore dev dependency (#1509)
  • f3ab5cd Document Dependabot semver labels in the update-dependencies skill (#1516)
  • aa60a74 Add agent skills for recurring repo workflows (#1486)
  • 4f15f8c Detect unused code and dependencies with knip (#1492)
  • Additional commits viewable in compare view

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@dependabot
chore(deps): bump undici and testcontainers
66bc09c 
Bumps [undici](https://github.com/nodejs/undici) to 8.12.3 and updates ancestor dependency [testcontainers](https://github.com/testcontainers/testcontainers-node). These dependencies need to be updated together.


Updates `undici` from 5.29.0 to 8.12.3
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v5.29.0...v8.12.3)

Updates `testcontainers` from 10.28.0 to 12.2.1
- [Release notes](https://github.com/testcontainers/testcontainers-node/releases)
- [Commits](testcontainers/testcontainers-node@v10.28.0...v12.2.1)

---
updated-dependencies:
- dependency-name: undici
  dependency-version: 8.12.3
  dependency-type: indirect
- dependency-name: testcontainers
  dependency-version: 12.2.1
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Nov 4, 2026
@dependabot dependabot Bot mentioned this pull request Nov 4, 2026
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