CVE-2026-26932 — Improper Validation of Array Index in Packetbeat Leading to Denial of Service

CVE-2026-26932

Improper Validation of Array Index in Packetbeat Leading to Denial of Service PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Elastic / Packetbeat	affected 9.0.0 through 9.2.4; affected 8.0.0 through 8.19.10

CWE

CWE-129

References

https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-10/385247

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.