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Vulnerability record · CVE-2023-40591 · published 6 September 2023

CVE-2023-40591: Go ethereum uncontrolled resource consumption vulnerability

Ethereum · Go Ethereum

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node, can be made to consume unbounded amounts of memory when handling specially crafted p2p messages sent from an attacker node. The fix is included in geth version `1.12.1-stable`, i.e, `1.12.2-unstable` and onwards. Users are advised to upgrade. There are no known workarounds for this vulnerability.

7.5 CVSS 3.1 High EPSS 1.1% · top 35.2% CWE-400 · Uncontrolled resource consumption
7.5CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node, can be made to consume unbounded amounts of memory when handling specially crafted p2p messages sent from an attacker node. The fix is included in geth version `1.12.1-stable`, i.e, `1.12.2-unstable` and onwards. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://geth.ethereum.org/docs/developers/geth-developer/disclosures Product
https://github.com/ethereum/go-ethereum/releases/tag/v1.12.1 Release Notes
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-ppjg-v974-84cm Third Party Advisory
https://geth.ethereum.org/docs/developers/geth-developer/disclosures Product
https://github.com/ethereum/go-ethereum/releases/tag/v1.12.1 Release Notes
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-ppjg-v974-84cm Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-40591), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.