CVE-2026-22862

HIGH

go-ethereum < 1.16.8 - Denial of Service via Crafted Message

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-22862. PoCs published by qzhodl.

AI-analyzed exploit summary This PoC demonstrates a DoS vulnerability in the Ethereum go-ethereum library's ECIES decryption implementation by crafting a malformed ciphertext that triggers a panic. It exploits improper handling of ciphertexts with an IV shorter than the expected 16 bytes.

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.

Exploits (1)

nomisec WORKING POC
by qzhodl · poc
https://github.com/qzhodl/CVE-2026-22862

This PoC demonstrates a DoS vulnerability in the Ethereum go-ethereum library's ECIES decryption implementation by crafting a malformed ciphertext that triggers a panic. It exploits improper handling of ciphertexts with an IV shorter than the expected 16 bytes.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: go-ethereum (ECIES implementation)
No auth needed
Prerequisites: Knowledge of victim's public key · Ability to send crafted ciphertext to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 7.5
EPSS 0.0004
EPSS Percentile 11.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (2)
ethereum/go-ethereum 0 - 1.16.8Go
ethereum/go_ethereum < 1.16.8
Published Jan 13, 2026
Tracked Since Feb 18, 2026