CVE-2026-22868: go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol

Q: How do I fix CVE-2026-22868?

go ethereum: upgrade to 1.16.8. Exact commands for each OS are on this page.

Q: Is CVE-2026-22868 being exploited?

CVE-2026-22868 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-22868 affect?

CVE-2026-22868 affects go ethereum. Severity is high (CVSS 7.5). go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node can be forced to shutdown/crash using a specially crafted message. This vulnerability is fixed in 1.16.8.

Q: How urgent is CVE-2026-22868?

Priority 44/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2026-22868 is a high-severity flaw (CVSS 7.5) affecting go ethereum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node can be forced to shutdown/crash using a specially crafted message. This vulnerability is fixed in 1.16.8.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-20
Published	2026-01-13
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: ethereum

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-13 21:15 UTCPublished CVE record published
2026-06-17 10:20 UTCUpdated Record last modified

ethereum go ethereum UPGRADE

Affected: < 1.16.8

Fixed in: 1.16.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy go-ethereum || rpm -q go-ethereum || go-ethereum --version

2. UPGRADE to 1.16.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade go-ethereum

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade go-ethereum

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-22868?

go ethereum: upgrade to 1.16.8. Exact commands for each OS are on this page.

Is CVE-2026-22868 being exploited?

CVE-2026-22868 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-22868 affect?

CVE-2026-22868 affects go ethereum. Severity is high (CVSS 7.5). go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node can be forced to shutdown/crash using a specially crafted message. This vulnerability is fixed in 1.16.8.

How urgent is CVE-2026-22868?

Priority 44/100. High severity; Remotely exploitable, no login, no user action

Software pages

Go (Golang) vulnerabilities

Related CVEs

CVE-2026-22862 HIGH 7.5 UPGRADE go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol

References

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