CVE-2026-84886: simular-ai Agent-S OCR HTTP API ocr_server.py ImageData resource consumption

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-03 · updated 2026-09-05
Weakness: CWE-400

Description

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.

Affected products

simular-ai Agent-S: 0.3.0, 0.3.1, 0.3.2

References

https://github.com/hackerguopeng/cve/tree/main/AgentS_OCR_HTTP_Body_Image_DoS_Report
https://vuldb.com/cve/CVE-2026-84886
https://vuldb.com/submit/886443
https://vuldb.com/vuln/398135
https://vuldb.com/vuln/398135/cti

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