CVE-2026-26933
MEDIUM5.7EPSS 0.01%Packetbeat does not properly validate an array index in multiple protocol parser components in github.com/elastic/beats
Published: 3/19/2026Modified: 5/13/2026
Description
Packetbeat does not properly validate an array index in multiple protocol parser components in github.com/elastic/beats
Affected packages (3)
- Go/github.com/elastic/beatsfrom 0
- Go/github.com/elastic/beats/v7from 0, < 7.0.0-alpha2.0.20260126223743-dec1b31111ec
- Go/github.com/elastic/beats/v7from 0, < 7.0.0-alpha2.0.20260126223743-dec1b31111ec
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.7 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References (6)
- ADVISORYhttps://github.com/advisories/GHSA-27qj-9gvp-8rh9
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-26933
- PATCHhttps://github.com/elastic/beats
- WEBhttps://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-11/385533
- WEBhttps://github.com/elastic/beats/commit/941098459db6556b837194f40c076b08d51137cb
- WEBhttps://github.com/elastic/beats/commit/dec1b31111ec3500b82db21ba67dde5c914ee94d