CVE-2026-84427zhayujie CowAgent Bash Tool bash.py denial of service
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No exploitation reported and no EPSS estimate yet.
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A vulnerability was determined in zhayujie CowAgent up to 2.1.7. Affected is an unknown function of the file agent/tools/bash/bash.py of the component Bash Tool. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-404
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
zhayujie CowAgent zhayujie:cowagent | 2.1.0; 2.1.1; 2.1.2; 2.1.3; 2.1.4; 2.1.5; 2.1.6; 2.1.7 | CNA record |
References
- https://vuldb.com/vuln/397793vdb-entry
- https://vuldb.com/vuln/397793/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-84427third-party-advisory
- https://vuldb.com/submit/884137third-party-advisory
- https://github.com/outlookgp/CVE/tree/main/CowAgent_Bash_Output_Buffer_DoS_Reportexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.