CVE-2026-108768: zhayujie CowAgent Streaming Tool-Call Argument json.loads allocation of resources

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-11 · updated 2026-10-13
Weakness: CWE-400

Description

A vulnerability was identified in zhayujie CowAgent up to 2.2.0. Affected by this issue is the function json.loads of the component Streaming Tool-Call Argument Handler. The manipulation leads to allocation of resources. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

zhayujie CowAgent: 2.0, 2.1, 2.2.0

References

https://github.com/lche511/cve/tree/main/CowAgent_Tool_Call_Arguments_JSON_Repair_DoS_Report
https://vuldb.com/cve/CVE-2026-108768
https://vuldb.com/submit/958026
https://vuldb.com/vuln/416550
https://vuldb.com/vuln/416550/cti

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