CVE-2026-26313 — HIGH (7.5)

Q: How severe is CVE-2026-26313?

CVE-2026-26313 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-26313?

Check the references section above for vendor advisories and patch information. Affected products include: Ethereum Go Ethereum.

Vulnerability Description

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.17.0, an attacker can cause high memory usage by sending a specially-crafted p2p message. The issue is resolved in the v1.17.0 release.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Ethereum	Go Ethereum	< 1.17.0

Related Weaknesses (CWE)

CWE-770

References

https://github.com/ethereum/go-ethereum/releases/tag/v1.17.0Release Notes
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3Vendor Advisory

FAQ

What is CVE-2026-26313?

CVE-2026-26313 is a vulnerability with a CVSS score of 7.5 (HIGH). go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.17.0, an attacker can cause high memory usage by sending a specially-crafted p2p message. The...

How severe is CVE-2026-26313?

CVE-2026-26313 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-26313?

Check the references section above for vendor advisories and patch information. Affected products include: Ethereum Go Ethereum.