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GHSA-689v-6xwf-5jf3

Go Ethereum affected by DoS via malicious p2p message

Also known asCVE-2026-26313GO-2026-4508
Published
Feb 18, 2026
Updated
Feb 28, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk43th percentile+0.55%
0.00%0.36%0.72%1.08%0.0%0.0%0.0%0.0%0.6%Mar 26May 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

1 pkg affected
🐹github.com/ethereum/go-ethereum

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Impact

An attacker can cause high memory usage by sending a specially-crafted p2p message. More details to be released later.

Patches

The issue is resolved in the v1.17.0 release.

Credit

This issue was reported to the Ethereum Foundation Bug Bounty Program by @revofusion

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/ethereum/go-ethereumall versions1.17.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/ethereum/go-ethereum. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update github.com/ethereum/go-ethereum to 1.17.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-689v-6xwf-5jf3 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-689v-6xwf-5jf3 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-689v-6xwf-5jf3. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact An attacker can cause high memory usage by sending a specially-crafted p2p message. More details to be released later. ### Patches The issue is resolved in the v1.17.0 release. ### Credit This issue was reported to the Ethereum Foundation Bug Bounty Program by @revofusion
O3 Security · Impact-Aware SCA

Is GHSA-689v-6xwf-5jf3 in your dependencies?

O3 detects GHSA-689v-6xwf-5jf3 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.