CVE-2026-22862: go-ethereum has a DoS via malicious p2p message

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-13 · updated 2026-06-17
Weakness: CWE-20

Description

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.

Affected products

ethereum go-ethereum: before 1.16.8 — fixed in 1.16.8

How to fix

Upgrade to a fixed version: ethereum go-ethereum 1.16.8. Check the vendor advisory for mitigations.

References

https://github.com/ethereum/go-ethereum/commit/abeb78c647e354ed922726a1d719ac7bc64a07e2
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-mr7q-c9w9-wh4h

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