What is CVE-2026-26314?

CVE-2026-26314 is a high-severity vulnerability in Ethereum Go-ethereum, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-02-19.

How severe is CVE-2026-26314?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Ethereum Go-ethereum

CVE-2026-26314

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.16.9, a vulnerable node can be forced to shutdown/crash using a specially crafted message. The problem is resolved in the v1.16.9 an…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.006 (43.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ethereum Go-ethereum — versions < 1.16.9
Ethereum Go_ethereum

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-26314?: CVE-2026-26314 is a high-severity vulnerability in Ethereum Go-ethereum, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-02-19.
How severe is CVE-2026-26314?: High severity. CVSS v3 base score is 7.5 out of 10.