go-ethereum has a DoS via malicious p2p message
Priority LOW 32CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
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 it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00625 50th percentileScored 2026-11-07
Fix Fixed go-ethereum (ethereum): 1.16.8github.com/ethereum/go-ethereum (Go): 1.16.8
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ethereum | go-ethereum | before 1.16.8 | 1.16.8 | Patch available | CNA |
| — | github.com/ethereum/go-ethereum (Go) | before 1.16.8 | 1.16.8 | Patch available | GHSA-mq3p-rrmp-79jg |
- go-ethereum Vendorethereum Affected before 1.16.8 Fixed in 1.16.8 Patch available CNA
- github.com/ethereum/go-ethereum (Go) Vendor— Affected before 1.16.8 Fixed in 1.16.8 Patch available GHSA-mq3p-rrmp-79jg
Remediation
- Fix · CNA go-ethereum (ethereum) Fixed in 1.16.8
- Fix · GHSA-mq3p-rrmp-79jg github.com/ethereum/go-ethereum (Go) Fixed in 1.16.8 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-22868
- 2026-10-03 Alias added: GHSA-mq3p-rrmp-79jg
- 2026-11-03 EPSS moved to the 50th–90th percentile
References
More ethereum Go Ethereum vulnerabilities
- TI-2023-22561 Geth (aka go-ethereum) through 1.13.4, when --http --graphql is used, allows remote… CVSS 3.1HIGH 7.5
- TI-2026-21270 Go Ethereum affected by DoS via malicious p2p message CVSS 4.0HIGH 8.7
- TI-2023-21389 Denial of service via malicious p2p message in go-ethereum CVSS 3.1HIGH 7.5
- TI-2018-08612 The GetBlockHeadersMsg handler in the LES protocol implementation in Go Ethereum (aka… CVSS 3.0HIGH 7.5
- TI-2026-21271 Go Ethereum Improperly Validates the ECIES Public Key in RLPx Handshake CVSS 4.0MEDIUM 6.9
- TI-2026-21269 Go Ethereum affected by DoS via malicious p2p message CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-22868 · CVE Program
- CVE-2026-22868 · NVD
- FIRST EPSS
- GHSA-mq3p-rrmp-79jg · GitHub Advisory Database · CC BY 4.0
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