Vulnerability · Published Feb 19, 2026 · Assigned by GitHub_M
CVE-2026-26313Go Ethereum affected by DoS via malicious p2p message
Medium 6.9
In plain English
A medium-severity resource allocation without limits in go-ethereum from ethereum. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.7%top 48.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.17.0, an attacker can cause high memory usage by sending a specially-crafted p2p message. The issue is resolved in the v1.17.0 release.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | geth | 1.17.0-r0 | ALPINE-CVE-2026-26313 |
| Alpine:v3.24 | geth | 1.17.0-r0 | ALPINE-CVE-2026-26313 |
| Go | github.com/ethereum/go-ethereum | 1.17.0 | GHSA-689v-6xwf-5jf3 |
| Go | github.com/ethereum/go-ethereum | 1.17.0 | GO-2026-4508 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ethereum | go-ethereum | < 1.17.0 |
Weakness: CWE-770 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
References
- https://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3 x_refsource_CONFIRM
- https://github.com/ethereum/go-ethereum/releases/tag/v1.17.0 x_refsource_MISC