Vulnerability · Published Oct 11, 2026 · Assigned by VulDB

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

Medium 4.3

In plain English

A medium-severity resource allocation without limits in CowAgent from zhayujie. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 79.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
zhayujie	CowAgent	2.02.12.2.0

Weakness: CWE-770, CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C

References

VDB-416550 | zhayujie CowAgent Streaming Tool-Call Argument json.loads allocation of resources vdb-entry, technical-description
VDB-416550 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-108768 | CVE Analysis and Report third-party-advisory
Submit #958026 | zhayujie CowAgent 2.1.6 Denial of Service third-party-advisory
https://github.com/lche511/cve/tree/main/CowAgent_Tool_Call_Arguments_JSON_Repair_DoS_Report exploit