8.7

CVE-2026-26314: ethereum go_ethereum Improper Input Validation

CVSS: 8.7v4.0HighAnalyzed
AliasesGHSA-2gjw-fg97-vg3rGO-2026-4507
Published 19-02-2026Last modified 20-02-2026
Open JSON

Vulnerability summary

CVE-2026-26314 is a high (CVSS 8.7) Improper Input Validation vulnerability in ethereum go_ethereum. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.5% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v4.0 (CVE.org)
EPSS score
0.85%
0%100%
Low · +0.25 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:21483-1SUSE-SU-2026:0757-1

Timeline

  1. 19-02-2026
    PublishedVulnerability first disclosed.
  2. 20-02-2026
    Last modifiedVulnerability information updated.

Description

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 and v1.17.0 releases of Geth.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.85%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

+0.25 pp

From 0.60% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.85%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ethereum2 products
Github.com/ethereum1 product
  • go-ethereum< 1.16.9

2 vendors · 3 products

References

6 links