Elastic Packetbeat up to 7.17.29/8.19.9/9.1.9/9.2.3 MongoDB Protocol Parser array index

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Elastic Packetbeat up to 7.17.29/8.19.9/9.1.9/9.2.3 and classified as critical. This vulnerability affects unknown code of the component MongoDB Protocol Parser. The manipulation results in array index. This vulnerability was named CVE-2026-0529. The attack needs to be approached within the local network. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Elastic Packetbeat up to 7.17.29/8.19.9/9.1.9/9.2.3. Affected is an unknown code of the component MongoDB Protocol Parser. The manipulation with an unknown input leads to a array index vulnerability. CWE is classifying the issue as CWE-129. The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. This is going to have an impact on availability. CVE summarizes:

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.

The advisory is available at discuss.elastic.co. This vulnerability is traded as CVE-2026-0529 since 12/19/2025. The exploitability is told to be easy. The attack needs to be initiated within the local network. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 8.19.10, 9.1.10 or 9.2.4 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (elastic): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Array index
CWE: CWE-129 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Packetbeat 8.19.10/9.1.10/9.2.4

Timelineinfo

12/19/2025 CVE reserved
01/14/2026 +26 days Advisory disclosed
01/14/2026 +0 days VulDB entry created
01/14/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2026-0529 (🔒)
GCVE (CVE): GCVE-0-2026-0529
GCVE (VulDB): GCVE-100-341058

Entryinfo

Created: 01/14/2026 12:41
Changes: 01/14/2026 12:41 (63)
Complete: 🔍
Cache ID: 216::103

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