CVE-2026-26313
Memory Exhaustion Vulnerability in go-ethereum p2p Messaging
Publication date: 2026-02-19
Last updated on: 2026-02-23
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| ethereum | go_ethereum | to 1.17.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-770 | The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability exists in go-ethereum (geth), a golang implementation of the Ethereum protocol. Before version 1.17.0, an attacker could send a specially-crafted peer-to-peer (p2p) message that causes the software to use a high amount of memory.
This issue was fixed in version 1.17.0 of go-ethereum.
How can this vulnerability impact me? :
This vulnerability can lead to excessive memory consumption on systems running vulnerable versions of go-ethereum. An attacker exploiting this could degrade system performance or potentially cause denial of service by exhausting available memory resources.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should upgrade your go-ethereum (geth) software to version 1.17.0 or later, where the issue has been resolved.