CVE-2026-86550

MediumCVSS 6.5/10Last modified Sep 9, 2026

Description

NuBrowser lacks protocol whitelist validation for the S.browser_fallback_url field of intent://, allowing attackers to inject javascript: URLs via 302 redirects. This results in a universal cross‑site scripting (UXSS) vulnerability that enables script execution within the origin of arbitrary websites.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published: Sep 8, 2026
Last modified: Sep 9, 2026
NVD status: Deferred

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