# CVE-2026-82640

## Summary

- **CVE ID:** CVE-2026-82640
- **Severity:** MEDIUM
- **CVSS Score:** 6.8 (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-312
- **Published:** Aug 30, 2026
- **Last Modified:** Aug 31, 2026

## Description

browser-use web-ui versions 2.0.0 through 3.0.0 write configured LLM API keys to disk in cleartext without encryption or access restrictions. Attackers with read access to the temporary settings directory can recover provider API keys from predictably-named JSON files.

## Affected Products

- browser-use — web-ui (2.0.0)

## References

- [CNA](https://github.com/browser-use/web-ui/issues/736)
- [CNA](https://github.com/browser-use/web-ui)
- [CNA](https://github.com/browser-use/web-ui/blob/v3.0.0/src/webui/webui_manager.py)
- [CNA](https://www.vulncheck.com/advisories/browser-use-web-ui-2.0.0-through-3.0.0-cleartext-api-key-storage)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.06%
- **EPSS Percentile:** 0.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-09._