CVE-2026-26932
Medium
Description
Improper Validation of Array Index (CWE-129) in the PostgreSQL protocol parser in Packetbeat can lead Denial of Service via Input Data Manipulation (CAPEC-153). An attacker can send a specially crafted packet causing a Go runtime panic that terminates the Packetbeat process. This vulnerability requires the pgsql protocol to be explicitly enabled and configured to monitor traffic on the targeted port.
SeverityMedium
CVSS5.7
Exploit probability—
Product
Elasticsearch Packetbeat
PublishedFeb 26, 2026
First seenFeb 26, 2026
Weakness typeCWE-129CWE-129
How to fix
Update
- elasticsearch packetbeat8.19.11, 9.2.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elasticsearch packetbeat | 8.0.0 ≤ v < 8.19.11, 9.0.0 ≤ v < 9.2.5 | 8.19.11, 9.2.5 |
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