CVE-2026-84887

simular-ai Agent-S Model-generated GUI Action Execution Workflow grounding.py denial of service

MEDIUM
4.3
CVSS Score
Published: September 2, 2026 at 09:00 PM UTC
Updated: September 3, 2026 at 05:44 PM UTC
1 product affected across 1 vendorAgent-S

Using Agent-S by simular-ai?

Get instant alerts when new vulnerabilities affect Agent-S - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.3
Exploit prediction
EPSS 0.6%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB Entry
Source: cverecord
https://vuldb.com/vuln/398136
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/398136/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-84887
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/886451

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-404

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card