CVE-2026-84886 simular-ai Agent-S OCR HTTP API ocr_server.py ImageData resource consumption
Remote attackers can cause resource exhaustion in the simular-ai Agent-S OCR HTTP API by manipulating image data arguments.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84886?
CVE-2026-84886 is a medium-severity denial of service vulnerability in simular-ai Agent-S, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-84886?
How do I fix CVE-2026-84886?
No fix has been published for CVE-2026-84886 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-84886 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84886 exists.
Sources
Also known as GHSA-wvcq-2rcq-fqc9.