This upgrade is completely backward-compatible and recommended for all users on versions below 12.0.9
Vulnerable code could allow a bad actor to trigger a denial of service attack via the /${locale}/_next/ route for anyone running a Next.js app at version >= 12.0.0, and using built-in i18n routing functionality.
How to Upgrade
We have released patch versions for both the stable and canary channels of Next.js.
To upgrade run npm install next@latest --save
Impact
Affected: All of the following must be true to be affected by this CVE
Next.js versions between v12.0.0 and v12.0.9
Using next start or a custom server
Using the built-in i18n support
Not affected:
Deployments on Vercel (vercel.com) are not affected along with similar environments where invalid requests are filtered before reaching Next.js.
We recommend everyone to upgrade regardless of whether you can reproduce the issue or not.
How to Assess Impact
If your server has seen requests to any route under the prefix /${locale}/_next/ that have triggered a heap overflow error, this was caused by the patched issue.
What is Being Done
As Next.js has grown in popularity and usage by enterprises, it has received the attention of security researchers and auditors. We are thankful to our users for their investigation and responsible disclosure of the original bug.
We've landed a patch that ensures this is handled properly so the requested route no longer crashes and triggers a heap overflow.
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dependabot[bot]
commented
2 years ago
Bumps next from 12.0.7 to 12.0.9.
Release notes
Sourced from next's releases.
... (truncated)
Commits
07431d3v12.0.9c938e20v12.0.9-canary.12c385d1bREMOVE: duplicate key in docs/testing.md (#33681)9b98c5achore(docs): update security headers specification (#33673)865a079v12.0.9-canary.11b5d4564Revert "Relay Support in Rust Compiler" (#33699)5c6c385Use relative path for example (#33565)65c63c9v12.0.9-canary.10b20eb99Relay Support in Rust Compiler (#33240)99d4d6cImplement web server as the request handler for edge SSR (#33635)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 rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will 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 version` will 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 dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) - `@dependabot use these labels` will set the current labels as the default for future PRs for this repo and language - `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language - `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language - `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language You can disable automated security fix PRs for this repo from the [Security Alerts page](https://github.com/devinit/data-hub-spotlights/network/alerts).