CVE-2026-82640

MEDIUM 5.5

browser-use web-ui 2.0.0 through 3.0.0 Cleartext API Key Storage

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-312
Vendor	browser-use
Product	web-ui
Published	Aug 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

browser-use / web-ui

2.0.0 ≤ 3.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 George Chen