# CVE-2023-40591: GO-2023-2046 - Unbounded memory consumption in github.com/ethereum/go-ethereum

Source: https://junglewise.ai/threats/cve-2023-40591-go-ethereum-vulnerable-to-denial-of-service-via-malicious-p2p  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-10-25  
License: CC BY 4.0 with a link back

CVE-2023-40591 · Severity: low · CVSS 3.1 · Published 2023-10-25

Unbounded memory consumption in github.com/ethereum/go-ethereum

Technologies: [github.com/ethereum/go-ethereum (Go)](https://junglewise.ai/threats/technologies/github-com-ethereum-go-ethereum). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2023-40591 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-40591 being exploited in the wild.

**How severe is CVE-2023-40591?** Low severity, with a CVSS score of 3.1, published 25 October 2023.

**Which products and versions are affected?** github.com/ethereum/go-ethereum (Go) SEMVER:introduced=0,fixed=1.12.1, SEMVER:introduced=0,fixed=1.12.1-stable.

**Is there a fix for CVE-2023-40591?** Yes. github.com/ethereum/go-ethereum (Go): upgrade to 1.12.1, 1.12.1-stable or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2023-40591?** Check whether you run github.com/ethereum/go-ethereum (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/ethereum/go-ethereum (Go): upgrade to 1.12.1, 1.12.1-stable or later

  ```sh
  go get github.com/ethereum/go-ethereum@v1.12.1-stable
  ```


## Affected products

- github.com/ethereum/go-ethereum (Go) SEMVER:introduced=0,fixed=1.12.1, SEMVER:introduced=0,fixed=1.12.1-stable

## Identifiers

- CVE-2023-40591
- GHSA-ppjg-v974-84cm
- GO-2023-2046

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- [GO-2026-4507 - Go Ethereum affected by crash via malicious p2p message in github.com/ethereum/go-ethereum](https://junglewise.ai/threats/cve-2026-26314-go-ethereum-affected-by-dos-via-malicious-p2p-message)
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- [GO-2026-4314 - High CPU usage leading to DoS via malicious p2p message in github.com/ethereum/go-ethereum](https://junglewise.ai/threats/cve-2026-22868-go-ethereum-is-vulnerable-to-high-cpu-usage-leading-to-dos-via)