CVE-2026-84887
simular-ai Agent-S Model-generated GUI Action Execution Workflow grounding.py denial of service
- State
- Published
- Severity
- 5.3 Medium
- Published
- Sep 2, 2026
- Updated
- Sep 3, 2026
- Reserved
- Sep 2, 2026
Description
A vulnerability was identified in simular-ai Agent-S up to 0.3.2. Affected by this issue is some unknown functionality of the file grounding.py of the component Model-generated GUI Action Execution Workflow. The manipulation leads to denial of service. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 4.3 Medium | 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 | VulDB |
| 3.0 | 4.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-404 Denial of Service
Affected Products
| Product | Versions |
|---|---|
Agent-Ssimular-ai |
|
References
- VDB-398136 | simular-ai Agent-S Model-generated GUI Action Execution Workflow grounding.py denial of servicevdb-entry
- VDB-398136 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-84887 | CVE Analysis and Reportthird-party-advisory
- Submit #886451 | Simular AI Agent-S 0.3.2 Denial of Servicethird-party-advisory
- https://github.com/outlookgp/CVE/tree/main/AgentS_Action_Parameter_Budget_DoS_Reportexploit
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.