CVE-2026-108683
Received Received - Intake

Uncontrolled Memory Allocation in CowAgent

Publication date: 2026-10-11

Last updated on: 2026-10-11

Assigner: VulDB

Description
A security vulnerability has been detected in zhayujie CowAgent up to 2.1.9. The impacted element is an unknown function of the component Media Download Handler. Such manipulation leads to uncontrolled memory allocation. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.2.0 is sufficient to resolve this issue. The name of the patch is b7967210268fc4c0afea1078223e74e7e96a8a54. You should upgrade the affected component.

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Meta Information

Published
2026-10-11
Last Modified
2026-10-11
Generated
2026-10-11
AI Q&A
2026-10-11
EPSS Evaluated
N/A
NVD
CVE-2026-108683
EUVD
EUVD-2026-97039

Affected Vendors & Products

Showing 10 associated CPEs
Vendor Product Version / Range
zhayujie CowAgent 2.1.0
zhayujie CowAgent 2.1.1
zhayujie CowAgent 2.1.2
zhayujie CowAgent 2.1.3
zhayujie CowAgent 2.1.4
zhayujie CowAgent 2.1.5
zhayujie CowAgent 2.1.6
zhayujie CowAgent 2.1.7
zhayujie CowAgent 2.1.8
zhayujie CowAgent 2.1.9

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
CWE-789 The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

Attack-Flow Graph

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Executive Summary

This vulnerability is an uncontrolled memory allocation issue in zhayujie CowAgent up to version 2.1.9, specifically in the Media Download Handler component. Attackers can remotely exploit this by sending oversized media files, causing excessive memory consumption and potential denial of service.

Detection Guidance

Detecting this vulnerability requires checking for uncontrolled memory allocation during media downloads in CowAgent versions before 2.2.0. Monitor system resource usage during media interactions on platforms like Feishu, DingTalk, QQ, Slack, and WeCom. Look for processes consuming excessive memory or CPU when handling media files.

Impact Analysis

The vulnerability can lead to system slowdowns, crashes, or complete service outages due to memory exhaustion. It may also allow attackers to degrade or disable the CowAgent service by overwhelming its resources with large media files.

Compliance Impact

The vulnerability allows uncontrolled memory allocation via oversized media files, which could lead to denial-of-service conditions or resource exhaustion. This may impact compliance by failing to ensure availability, integrity, or confidentiality of data, depending on the system's role in processing sensitive information under GDPR or HIPAA.

Mitigation Strategies

Upgrade CowAgent to version 2.2.0 or later immediately. The patch b7967210268fc4c0afea1078223e74e7e96a8a54 introduces media download limits (20MB for images, 100MB for files), timeouts, and streaming with cumulative tracking to prevent resource exhaustion.

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