What is GHSA-5xg9-xgmv-w59x?

GHSA-5xg9-xgmv-w59x is a security advisory published by GitHub Security Advisories with Medium severity. NuBrowser lacks protocol whitelist validation for the S.browser_fallback_url field of intent://,...

Which CVE IDs does GHSA-5xg9-xgmv-w59x cover?

GHSA-5xg9-xgmv-w59x covers the following CVE IDs: CVE-2026-86550. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5xg9-xgmv-w59x?

GHSA-5xg9-xgmv-w59x has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-5xg9-xgmv-w59xMediumCVSS 6.5

NuBrowser lacks protocol whitelist validation for the S.browser_fallback_url field of intent://,...

Vendor

GitHub Security Advisories

Published

September 8, 2026

Last Modified

September 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-86550 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-86550
https://support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/874505866159006721
https://github.com/advisories/GHSA-5xg9-xgmv-w59x