CVE-2022-23487
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedjs-libp2p is the official javascript Implementation of libp2p networking stack. Versions older than `v0.38.0` of js-libp2p are vulnerable to targeted resource exhaustion attacks. These attacks target libp2p’s connection, stream, peer, and memory management. An attacker can cause the allocation of large amounts of memory, ultimately leading to the process getting killed by the host’s operating system. While a connection manager tasked with keeping the number of connections within manageable limits has been part of js-libp2p, this component was designed to handle the regular churn of peers, not a targeted resource exhaustion attack. Users are advised to update their js-libp2p dependency to `v0.38.0` or greater. There are no known workarounds for this vulnerability.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidencejs-libp2p versions before v0.38.0 contain a vulnerability in their connection, stream, peer, and memory management systems. The built-in connection manager was designed to handle normal peer churn but cannot defend against targeted resource exhaustion attacks, allowing attackers to allocate excessive memory until the OS kills the process.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 0.38.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Locate js-libp2p installationRun 'npm list js-libp2p' or inspect your project's package.json dependencies to identify the installed version of the js-libp2p libraryAffected if The version shown is less than 0.38.0 (for example, 0.37.0, 0.36.0, etc.)
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Verify package.json version entryOpen node_modules/js-libp2p/package.json and check the 'version' field at the top of the fileAffected if The version field reads less than 0.38.0 (such as 0.37.x or earlier)
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Confirm connection manager is in useInspect your code for js-libp2p configuration that includes the default connection manager (look for ConnectionManager in your config or default peer connection behavior)Affected if Your js-libp2p setup uses the default connection manager and the version is below 0.38.0
You are affected if your installed js-libp2p version is below 0.38.0 and your application uses the default connection manager for peer connections.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped0.38.0
Update the js-libp2p dependency to version v0.38.0 or greater to obtain the fixed connection manager that can withstand targeted resource exhaustion attacks.
v0.38.0
- Update js-libp2p dependency to version 0.38.0 or greater by running: npm update libp2p or npm install libp2p@^0.38.0
- Verify the update was successful by checking the installed version: npm list libp2p
- Restart the application to ensure the new version is loaded
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-23487 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-23487 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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