Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N L N N N L 2.1 .0057 45.0 —
AFFECTED Product Versions Fixed Agent-S 0.3.0 – —
TIMELINE Sep 2 Reserved by VulDB Sep 2 Published (CNA: VulDB) Sep 3 RESCORED — CVE-2026-84887 (simular-ai Agent-S). CVSS 5.3 → 2.1 (NVD).
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.
| Date | Event | Detail |
|---|---|---|
| September 2, 2026 | Reserved | Reserved by VulDB |
| September 2, 2026 | Published | Published (CNA: VulDB) |
| September 3, 2026 | RESCORED | RESCORED — CVE-2026-84887 (simular-ai Agent-S). CVSS 5.3 → 2.1 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| simular-ai | Agent-S | — | 0.3.0 | — |
Authoritative record: CVE-2026-84887 at cve.org
Vendors: simular-ai
Weaknesses: CWE-404
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-84887 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
