CVE-2026-26314 json
Go Ethereum affected by DoS via malicious p2p message
published 2026-02-18 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-8437 , GHSA-2gjw-fg97-vg3r , GO-2026-4507
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/ethereum/go-ethereum 1.16.9
- ethereum go_ethereum 1.16.9
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260226T182644-150000.1.149.1
suse advisories SUSE-SU-2026:0757-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
- geth Alpine 3.24, Alpine 3.23 1.17.0-r0
alpine advisories ALPINE-CVE-2026-26314
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/ethereum/go-ethereum | <1.16.9 |
1.16.9 |
Affected products
- ethereum go-ethereum
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
github.com
/ethereum/go-ethereum/commit/895a8597cb16c02203e38707ed2d1da5c500fe60
web, patch
-
github.com
/ethereum/go-ethereum/security/advisories/GHSA-2gjw-fg97-vg3r
web, vendor-advisory, advisory
-
github.com
/ethereum/go-ethereum/releases/tag/v1.16.9
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-26314
advisory
-
github.com
/ethereum/go-ethereum
package
-
pkg.go.dev
/vuln/GO-2026-4507
web
Sources
- CVE List CVE-2026-26314
- GitHub Advisory GHSA-2gjw-fg97-vg3r
- NVD CVE-2026-26314
- OSV GO-2026-4507
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.