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Bump express in xtermjs workspace#13486

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workspace-xtermjs-bump-express
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Bump express in xtermjs workspace#13486
jonatanschroeder wants to merge 1 commit intomasterfrom
workspace-xtermjs-bump-express

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@jonatanschroeder jonatanschroeder commented Dec 1, 2025

Description

Resolves a security concern.

Testing

Opened the workspace, seems to still work as expected.

@jonatanschroeder jonatanschroeder marked this pull request as ready for review December 1, 2025 22:58
@jonatanschroeder jonatanschroeder requested a review from a team as a code owner December 1, 2025 22:58
@jonatanschroeder jonatanschroeder requested review from mylesw27 and removed request for a team December 1, 2025 22:58
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codecov Bot commented Dec 1, 2025

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 53.15%. Comparing base (3dfe452) to head (eaaad71).
⚠️ Report is 510 commits behind head on master.

Additional details and impacted files
@@            Coverage Diff             @@
##           master   #13486      +/-   ##
==========================================
- Coverage   53.15%   53.15%   -0.01%     
==========================================
  Files         865      865              
  Lines       32768    32768              
  Branches     4893     4893              
==========================================
- Hits        17418    17417       -1     
  Misses      14048    14048              
- Partials     1302     1303       +1     
Flag Coverage Δ
javascript 50.82% <ø> (-0.01%) ⬇️
python 70.33% <ø> (ø)

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coderabbitai Bot commented Dec 1, 2025

📝 Walkthrough

Walkthrough

The express dependency in the xtermjs workspace is updated from version ^4.21.2 to ^4.22.1 in the package.json file. No functional code changes are included in this update.

Changes

Cohort / File(s) Change Summary
Dependency Updates
workspaces/xtermjs/src/package.json
Updated express version from ^4.21.2 to ^4.22.1

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

  • Single file modification with a straightforward version number update
  • No logic or structural changes to review
  • Verify that the version bump (4.21.2 → 4.22.1) introduces no breaking changes relevant to the project

Pre-merge checks and finishing touches

✅ Passed checks (2 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly and specifically describes the main change: bumping the express dependency version in the xtermjs workspace.
Description check ✅ Passed The description is related to the changeset, mentioning the security concern resolution and basic testing performed on the workspace.
✨ Finishing touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch workspace-xtermjs-bump-express

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Actionable comments posted: 1

📜 Review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 3dfe452 and eaaad71.

⛔ Files ignored due to path filters (1)
  • workspaces/xtermjs/src/yarn.lock is excluded by !**/yarn.lock, !**/*.lock
📒 Files selected for processing (1)
  • workspaces/xtermjs/src/package.json (1 hunks)
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📓 Common learnings
Learnt from: nwalters512
Repo: PrairieLearn/PrairieLearn PR: 11893
File: eslint.config.mjs:12-13
Timestamp: 2025-05-01T21:06:31.574Z
Learning: typescript-eslint versioning is independent of ESLint versioning. Version 8.31.1 is compatible with ESLint 9, as the package officially supports ESLint version range ^8.57.0 || ^9.0.0.
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"command-line-args": "^6.0.1",
"command-line-usage": "^7.0.3",
"express": "^4.21.2",
"express": "^4.22.1",
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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

🌐 Web query:

express 4.22.1 release notes changelog security fixes

💡 Result:

I can't find any Express release tagged 4.22.1. The official Express releases page and changelogs list up through the 4.21.x patch series and newer v5 releases, and the project's security posts list recent security advisories (body-parser, multer, on-headers, CVEs noted). See:

  • Express GitHub releases (shows 4.21.2, 4.21.1, etc.). [1]
  • Express security blog / advisories (recent security-release posts and CVE list). [2][3]

If you meant a different version (for example 4.21.2) or want me to search for a specific CVE or security-fix details, tell me which and I’ll fetch the exact changelog entries and advisories.

Sources:
[1] https://github.com/expressjs/express/releases
[2] https://expressjs.com/en/blog/ (Security posts / release notes)
[3] https://expressjs.com/2024/09/29/security-releases.html


🌐 Web query:

express 4.21.2 security fixes vulnerability

💡 Result:

Short answer: Express 4.21.2 contains a security fix that updates the path-to-regexp dependency to address a vulnerability. Other related Express security fixes: 4.21.1 updated cookie (res.cookie), 4.20.0 fixed an XSS in res.redirect (CVE-2024-43796). Sources: [1][2][3].

Details and sources:

  • Express security release notes (4.21.2: path-to-regexp updated). [1]
  • Debian / security trackers listing related CVEs and fixes (CVE-2024-43796, CVE-2024-10491, references showing 4.21.2 as a fixed upload in distributions). [2][3]
  • Snyk entry noting open-redirect issues in older Express lines and recommending upgrade to 5.x for some fixes. [4]

If you want, I can:

  • show the exact commit/PR that bumped path-to-regexp, or
  • scan your project for vulnerable Express versions and suggest upgrade steps. Which would you prefer?

References:
[1] Express security updates — https://expressjs.com/en/advanced/security-updates.html
[2] CVE-2024-43796 (Debian security tracker) — https://security-tracker.debian.org/tracker/CVE-2024-43796
[3] CVE-2024-10491 (Debian security tracker) — https://security-tracker.debian.org/tracker/CVE-2024-10491
[4] Snyk — org.webjars.npm:express 4.21.2 vulnerabilities.


🌐 Web query:

express-ws 5.0.2 compatibility express 4.22.1

💡 Result:

Short answer: Yes — express-ws@5.0.2 is compatible with Express 4.22.1 (it targets/works with Express 4.x). See the express-ws npm README showing installation/usage with an Express app, and package info listing v5.0.2 as the latest release. [1][2]

Notes: express-ws hasn’t had recent active maintenance, so if you plan to upgrade Express to v5+ test your websocket routes (and watch for issues). For Express v5 migration details, see the official Express migration guide. [3]

Sources:

  • express-ws (npm) — usage / v5.0.2. [1]
  • express-ws package summary / health (Snyk). [2]
  • Express — migrating to v5 (official guide). [3]

🏁 Script executed:

cat workspaces/xtermjs/src/package.json | grep -A 2 -B 2 "express"

Repository: PrairieLearn/PrairieLearn

Length of output: 242


Critical: Express version 4.22.1 does not exist.

The Express project's official releases show versions up through 4.21.x in the 4.x series, then v5.x. Version 4.22.1 does not exist in any official Express release. Update to a valid version (e.g., 4.21.2, the latest 4.x release with security fixes, or explicitly document if a different version is intended). The current package.json entry will cause installation or resolution issues.

🤖 Prompt for AI Agents
In workspaces/xtermjs/src/package.json around line 14, the dependency entry
lists "express": "^4.22.1" which is not a valid released Express version; change
the version to a valid release (for example "^4.21.2") or to the intended
correct version, update the package.json entry accordingly, then run npm/yarn
install and update lockfile to ensure resolution succeeds.

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🧩 Analysis chain

🌐 Web query:

Express 4.22.1 release November 2024

💡 Result:

I couldn't find an Express 4.22.1 release in November 2024. The Express GitHub releases show v4.21.2 (Dec 5, 2024) as the most recent v4 release on the releases page, and the security advisory / CVE references fixes landed in 4.22.0 (not 4.22.1). [1][2]

Sources:

  • Express releases (GitHub). [1]
  • GitHub/CVE advisory & related release notes referencing 4.22.0. [2]

🌐 Web query:

expressjs express v4.22.1 github release

💡 Result:

There is no Express v4.22.1 release. The latest v4 release is v4.21.2 (released 2024-11-06). See the GitHub releases and the Express changelog. [1][2]

Sources:
[1] expressjs/express — Releases (GitHub).
[2] Express changelog — v4.21.2 (expressjs.com).


🏁 Script executed:

#!/bin/bash
# Check if the URL provided by the user exists and what it contains
curl -L -s "https://github.com/expressjs/express/releases/tag/v4.22.1" | grep -A 5 -B 5 "Release" | head -30

Length of output: 1897


🏁 Script executed:

#!/bin/bash
# Get the full content of the release page to see what's in v4.22.1
curl -L -s "https://github.com/expressjs/express/releases/tag/v4.22.1" | grep -A 50 "What's Changed" | head -80

Length of output: 3419


🏁 Script executed:

#!/bin/bash
# Check what's in PR #6934 to understand what Express 4.22.1 contains
curl -L -s "https://github.com/expressjs/express/pull/6934" | grep -A 30 "<!-- raw HTML omitted -->" | head -100

Length of output: 0


🏁 Script executed:

#!/bin/bash
# Get the release date and more details about v4.22.1
curl -L -s "https://api.github.com/repos/expressjs/express/releases/tags/v4.22.1" | jq -r '.published_at, .body, .created_at'

Length of output: 232


🏁 Script executed:

#!/bin/bash
# Get the comparison between 4.22.0 and v4.22.1 to see what changed
curl -L -s "https://api.github.com/repos/expressjs/express/compare/4.22.0...v4.22.1" | jq -r '.commits[] | {message: .commit.message, author: .commit.author.name, date: .commit.author.date}'

Length of output: 285


@jonatanschroeder, you're absolutely correct, and I apologize for the error. Express v4.22.1 does exist—it was released today (December 1st, 2025) at 20:55:45 UTC, just a couple of hours before this PR was opened.

However, I should note an important detail about this release: v4.22.1 reverts a security patch for CVE-2024-51999 that was included in v4.22.0. According to the commit history, the release contains a revert of the security patch commit.

Given that the PR description mentions addressing a security concern, could you confirm whether:

  1. The revert of CVE-2024-51999's patch is intentional for your use case?
  2. Is there a different security issue being addressed by this update (perhaps from v4.21.2 to the 4.22.x line)?

This will help ensure the update aligns with your security objectives.


🧠 Learnings used
Learnt from: CR
Repo: PrairieLearn/PrairieLearn PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-11-24T19:08:48.217Z
Learning: Use `yarn` (v4) to manage dependencies and run scripts in this monorepo

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🧩 Analysis chain

🌐 Web query:

express 4.22.1 npm release

💡 Result:

I couldn't find any published Express 4.22.1 release. The official GitHub releases list shows 4.21.2 as the latest 4.x tag and the repository release history doesn't include a 4.22.1 tag. [1][2]

Sources:

  • express GitHub releases (shows 4.21.2 as latest 4.x). [1]
  • Express npm summary (official package page summary). [2]

Would you like me to watch for a 4.22.x release and notify you when it appears, or check the npm registry directly for a publish timestamp?


🌐 Web query:

site:npmjs.com express version 4.22.1

💡 Result:

I searched npm and there is no express release numbered 4.22.1. The express package on npm shows v4 releases such as 4.18.x (e.g. 4.18.1) and the project’s npm listing and docs reference the 4.x and 5.x lines. [1][2]

Sources:

  • express package on npm (general listing). [1]
  • express v4.18.1 page on npm (example v4 release). [2]

🏁 Script executed:

#!/bin/bash
# Check if express 4.22.1 exists in the npm registry by querying the registry directly
curl -s https://registry.npmjs.org/express/4.22.1 | jq -r '.version, .dist.tarball' 2>/dev/null || echo "Version not found"

# Also check what versions are available after 4.21.2
curl -s https://registry.npmjs.org/express | jq -r '.versions | keys[] | select(startswith("4.2"))' | sort -V | tail -10

Length of output: 110


🌐 Web query:

express 4.22.0 4.22.1 changelog release notes

💡 Result:

I couldn't find releases or changelog entries for Express 4.22.0 or 4.22.1 — the official changelog and GitHub releases list the latest 4.x release as 4.21.2 (release date: 2024-11-06). See the Express release list and changelog for details. [1][2]

If you want, I can watch the GitHub releases page and notify you if 4.22.x appears, or look up a different version.

Sources:

  • Express GitHub releases. [1]
  • Express official changelog (Release history). [2]

🏁 Script executed:

#!/bin/bash
# Get the publish date and other metadata for express 4.22.1
curl -s https://registry.npmjs.org/express/4.22.1 | jq '{version: .version, publishDate: .time, description: .description}'

# Also get 4.22.0 info
curl -s https://registry.npmjs.org/express/4.22.0 | jq '{version: .version, publishDate: .time, description: .description}'

# Check the latest versions available
curl -s https://registry.npmjs.org/express | jq -r '.["dist-tags"]'

Length of output: 277


@jonatanschroeder You're absolutely right, and I sincerely apologize for the incorrect information. Express 4.22.1 does indeed exist on npm and is actually the latest 4.x release (tagged as latest-4 in the npm registry).

I've verified directly against the npm registry, and 4.22.1 is published and available. Your bump from 4.21.2 to 4.22.1 is a proper update to the latest 4.x version.

Thank you for the correction and for providing the links. My previous critical issue comment was wrong and should be disregarded.


🧠 Learnings used
Learnt from: CR
Repo: PrairieLearn/PrairieLearn PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-11-24T19:08:48.217Z
Learning: Use `yarn` (v4) to manage dependencies and run scripts in this monorepo

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github-actions Bot commented Dec 1, 2025

All images

Image Platform Old Size New Size Change
prairielearn/executor:eaaad719afc54cdfa636992abd7ac2ccbeb64f6d linux/arm64 1234.89 MB 1236.05 MB 0.09%
prairielearn/executor:eaaad719afc54cdfa636992abd7ac2ccbeb64f6d linux/amd64 1287.23 MB 1288.39 MB 0.09%
prairielearn/prairielearn:eaaad719afc54cdfa636992abd7ac2ccbeb64f6d linux/arm64 1234.88 MB 1236.04 MB 0.09%
prairielearn/prairielearn:eaaad719afc54cdfa636992abd7ac2ccbeb64f6d linux/amd64 1287.23 MB 1288.39 MB 0.09%
prairielearn/workspace-xtermjs:eaaad719afc54cdfa636992abd7ac2ccbeb64f6d linux/amd64 476.70 MB 474.29 MB -0.51%
prairielearn/workspace-xtermjs:eaaad719afc54cdfa636992abd7ac2ccbeb64f6d linux/arm64 466.70 MB 464.34 MB -0.50%

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Generally in favor of being on the latest, even if they are being silly about security patches (expressjs/express#6932). Please update the description to note that this doesn't actually resolve the vulnerability anymore.

@jonatanschroeder jonatanschroeder added the do not merge This pull request should not be merged yet label Dec 2, 2025
@jonatanschroeder jonatanschroeder marked this pull request as draft December 2, 2025 14:01
@jonatanschroeder
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Generally in favor of being on the latest, even if they are being silly about security patches (expressjs/express#6932). Please update the description to note that this doesn't actually resolve the vulnerability anymore.

Seems like there was some discussion that this (and the 5.2.1 update in #13485) is a potentially breaking change. I'll wait until there is some movement in the discussion in expressjs/express#6933 before proceeding with this change.

@jonatanschroeder
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Closing with the understanding from expressjs/express#6933 (comment) that the express team does not consider this a security concern. If more information is released at a later date (promised post-mortem?) we can revisit this, possibly by attempting the workaround setting listed in the CVE itself.

@jonatanschroeder jonatanschroeder deleted the workspace-xtermjs-bump-express branch December 3, 2025 14:37
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