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GHSA-w2gr-585j-r428

MEDIUMFix: elastic/beats@0025fbf

GHSA-w2gr-585j-r428 is a medium-severity (CVSS 6.5) CWE-129 vulnerability in github.com/elastic/beats/v7. O3 Security confirms whether GHSA-w2gr-585j-r428 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Metricbeat affected by multiple denial of service vulnerabilities

Also known asCVE-2026-0528GO-2026-4360
Published
Jan 13, 2026
Updated
Mar 23, 2026
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed

Real-World Exposure

4 pkgs affected
🐹github.com/elastic/beats/v7🐹github.com/elastic/beats/v7🐹github.com/elastic/beats/v7🐹github.com/elastic/beats/v7

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

Improper Validation of Array Index (CWE-129) exists in Metricbeat can allow an attacker to cause a Denial of Service through Input Data Manipulation (CAPEC-153) via specially crafted, malformed payloads sent to the Graphite server metricset or Zookeeper server metricset. Additionally, Improper Input Validation (CWE-20) exists in the Prometheus helper module that can allow an attacker to cause a Denial of Service through Input Data Manipulation (CAPEC-153) via specially crafted, malformed metric data.

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/elastic/beats/v7all versions7.0.0-alpha2.0.20251217054608-6e42552a23ce
🐹Gogithub.com/elastic/beats/v78.0.0&&< 8.19.108.19.10
🐹Gogithub.com/elastic/beats/v79.0.0&&< 9.1.109.1.10
🐹Gogithub.com/elastic/beats/v79.2.0&&< 9.2.49.2.4

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/elastic/beats/v7. 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/elastic/beats/v7 to 7.0.0-alpha2.0.20251217054608-6e42552a23ce or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-w2gr-585j-r428 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-w2gr-585j-r428 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-w2gr-585j-r428. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Improper Validation of Array Index (CWE-129) exists in Metricbeat can allow an attacker to cause a Denial of Service through Input Data Manipulation (CAPEC-153) via specially crafted, malformed payloads sent to the Graphite server metricset or Zookeeper server metricset. Additionally, Improper Input Validation (CWE-20) exists in the Prometheus helper module that can allow an attacker to cause a Denial of Service through Input Data Manipulation (CAPEC-153) via specially crafted, malformed metric data.
O3 Security · Impact-Aware SCA

Is GHSA-w2gr-585j-r428 in your dependencies?

O3 detects GHSA-w2gr-585j-r428 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.