CVE-2026-84886
CVE-2026-84886
A vulnerability was determined in simular-ai Agent-S up to 0.3.2. Affected by this vulnerability is the function ImageData of the file gui_agents/s1/utils/ocr_server.py of the component OCR HTTP API. Executing a manipulation of the argument img_bytes can lead to resource consumption. The attack may 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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.006 (49.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.003
Weakness classification (CWE)
References
- github.com/hackerguopeng/cve/tree/main/AgentS_OCR_HTTP_Body_Image_DoS_Report (exploit)
- vuldb.com/cve/CVE-2026-84886 (third-party-advisory)
- vuldb.com/submit/886443 (third-party-advisory)
- vuldb.com/vuln/398135 (technical-description, vdb-entry)
- vuldb.com/vuln/398135/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-84886?
- CVE-2026-84886 is a medium-severity vulnerability, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-09-03.
- How severe is CVE-2026-84886?
- Medium severity. CVSS v3 base score is 5.3 out of 10.