CVE-2022-23487 libp2p denial of service vulnerability from lack of resource management
An attacker can exhaust resources in js-libp2p, causing the process to crash via memory exhaustion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-23487?
CVE-2022-23487 is a high-severity denial of service vulnerability in js-libp2p, published on 7 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
js-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.
Which versions are affected by CVE-2022-23487?
2 open source packages ship an affected version, including libp2p. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
libp2p npm | All versions | 0.38.0 |
libp2p npm | All versions | 0.38.0 |
Products include Protocol Libp2p.
How do I fix CVE-2022-23487?
Upgrade libp2p to 0.38.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-23487 being exploited?
There is no known exploitation of CVE-2022-23487 in the wild and no public exploit code.
Other vulnerabilities in js-libp2p
- CVE-2026-35457 libp2p-rust has unbounded rendezvous DISCOVER cookies enable remote memory exhaustion
- CVE-2026-35405 libp2p-rendezvous: Unlimited namespace registrations per peer enables OOM DoS on rendezvous servers
- CVE-2023-40583 libp2p nodes vulnerable to OOM attack
- CVE-2022-23492 go-libp2p denial of service vulnerability from lack of resource management
- CVE-2022-23486 libp2p-rust denial of service vulnerability from lack of resource management
Sources
Also known as CLSA-2026-1790600625, CLSA-2026-1792198239, GHSA-f44q-634c-jvwv.