7.5

CVE-2026-26932: elastic packetbeat Improper Validation of Array Index

CVSS: 7.5v3.1HighAnalyzed
Published 26-02-2026Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2026-26932 is a high (CVSS 7.5) Improper Validation of Array Index vulnerability in elastic packetbeat. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 51.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.68%
0%100%
Low · +0.22 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-02-2026
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.68%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

+0.22 pp

From 0.45% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.68%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Elastic1 product
  • packetbeat≥ 9.0.0, ≤ 9.2.4 | ≥ 8.0.0, ≤ 8.19.10
Elasticsearch1 product
  • packetbeat≥ 8.0.0, < 8.19.11 | ≥ 9.0.0, < 9.2.5

2 vendors · 2 products

References

1 links