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Medium severity5.7NVD Advisory· Published Feb 26, 2026· Updated Jun 17, 2026

CVE-2026-26932

CVE-2026-26932

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.

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Affected products

3
  • Elastic/Packetbeat3 versions
    cpe:2.3:a:elasticsearch:packetbeat:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:elasticsearch:packetbeat:*:*:*:*:*:*:*:*range: >=8.0.0,<8.19.11
    • (no CPE)
    • (no CPE)range: 9.0.0

Patches

Vulnerability mechanics

References

1

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