CVE-2026-0528 json
Improper Input Validation in Metricbeat Leading to Denial of Service
published 2026-01-13 9 mo ago modified 2026-09-10 1 mo ago also GHSA-w2gr-585j-r428 , GO-2026-4360 , EUVD-2026-2032
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/elastic/beats/v7 7.0.0-alpha2.0.20251217054608-6e42552a23ce, 8.19.10, 9.1.10, 9.2.4
- elastic kibana 7.17.29, 8.19.10, 9.1.10, 9.2.4
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260317T205859-150000.1.152.1
suse advisories SUSE-SU-2026:1042-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 9 mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/elastic/beats/v7 | <7.0.0-alpha2.0.20251217054608-6e42552a23ce >=8.0.0, <8.19.10 >=9.0.0, <9.1.10 >=9.2.0, <9.2.4 |
7.0.0-alpha2.0.20251217054608-6e42552a23ce 8.19.10 9.1.10 9.2.4 |
| go | github.com/elastic/beats | all versions |
no fix listed |
Affected products
- Elastic Metricbeat
Classification
- Weakness
-
- CWE-129 Improper Validation of Array Index
References
-
github.com
/elastic/beats/commit/0025fbfe668936eb8fa65b838508faf3c3c04387
web, patch
-
github.com
/elastic/beats/commit/6e42552a23cec734e7977ebd3eb7fb797ddce456
web, patch
-
github.com
/elastic/beats/commit/c7664c91a5a68c2df782bfeffe4fb7f42ff2ad1a
web, patch
-
discuss.elastic.co
/t/metricbeat-8-19-10-9-1-10-9-2-4-security-update-esa-2026-01/384519
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-0528
advisory
-
github.com
/elastic/beats
package
-
github.com
/advisories/GHSA-w2gr-585j-r428
advisory
Sources
- CVE List CVE-2026-0528
- GitHub Advisory GHSA-w2gr-585j-r428
- NVD CVE-2026-0528
- OSV GO-2026-4360
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