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Vulnerability Details :

CVE-2026-26932

Summary
Assigner-elastic
Assigner Org ID-271b6943-45a9-4f3a-ab4e-976f3fa05b5a
Published At-26 Feb, 2026 | 16:59
Updated At-26 Feb, 2026 | 18:28
Rejected At-
Credits

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

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:elastic
Assigner Org ID:271b6943-45a9-4f3a-ab4e-976f3fa05b5a
Published At:26 Feb, 2026 | 16:59
Updated At:26 Feb, 2026 | 18:28
Rejected At:
▼CVE Numbering Authority (CNA)
Improper Validation of Array Index in Packetbeat Leading to Denial of Service

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 Products
Vendor
Elasticsearch BVElastic
Product
Packetbeat
Default Status
unaffected
Versions
Affected
  • From 9.0.0 through 9.2.4 (semver)
  • From 8.0.0 through 8.19.10 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-129CWE-129 Improper Validation of Array Index
Type: CWE
CWE ID: CWE-129
Description: CWE-129 Improper Validation of Array Index
Metrics
VersionBase scoreBase severityVector
3.15.7MEDIUM
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 5.7
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-153CAPEC-153 Input Data Manipulation
CAPEC ID: CAPEC-153
Description: CAPEC-153 Input Data Manipulation
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
giant_anteater
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-10/385247
N/A
Hyperlink: https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-10/385247
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@elastic.co
Published At:26 Feb, 2026 | 18:23
Updated At:27 Feb, 2026 | 14:06

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.7MEDIUM
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 5.7
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-129Secondarysecurity@elastic.co
CWE ID: CWE-129
Type: Secondary
Source: security@elastic.co
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-10/385247security@elastic.co
N/A
Hyperlink: https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-10/385247
Source: security@elastic.co
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

2Records found
CVE-2026-0528
Matching Score-6
Assigner-Elastic
ShareView Details
Matching Score-6
Assigner-Elastic
CVSS Score-6.5||MEDIUM
EPSS-0.05% / 15.71%
||
7 Day CHG~0.00%
Published-13 Jan, 2026 | 21:02
Updated-22 Jan, 2026 | 19:57
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Improper Input Validation in Metricbeat Leading to Denial of Service

Improper Validation of Array Index (CWE-129) exists in Metricbeat can allow an attacker to cause a Denial of Service through Input Data Manipulation (CAPEC-153) via specially crafted, malformed payloads sent to the Graphite server metricset or Zookeeper server metricset. Additionally, Improper Input Validation (CWE-20) exists in the Prometheus helper module that can allow an attacker to cause a Denial of Service through Input Data Manipulation (CAPEC-153) via specially crafted, malformed metric data.

Action-Not Available
Vendor-Elasticsearch BV
Product-kibanaMetricbeat
CWE ID-CWE-129
Improper Validation of Array Index
CVE-2026-0529
Matching Score-6
Assigner-Elastic
ShareView Details
Matching Score-6
Assigner-Elastic
CVSS Score-6.5||MEDIUM
EPSS-0.03% / 7.33%
||
7 Day CHG~0.00%
Published-14 Jan, 2026 | 10:09
Updated-14 Jan, 2026 | 16:31
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Improper Validation of Array Index in Packetbeat Leading to Overflow Buffers

Improper Validation of Array Index (CWE-129) in Packetbeat’s MongoDB protocol parser can allow an attacker to cause Overflow Buffers (CAPEC-100) through specially crafted network traffic. This requires an attacker to send a malformed payload to a monitored network interface where MongoDB protocol parsing is enabled.

Action-Not Available
Vendor-Elasticsearch BV
Product-Packetbeat
CWE ID-CWE-129
Improper Validation of Array Index
Details not found