In Brave Android prior to v1.67.116, domains in the Brave Shields popup are elided from the right instead of the left, which may lead to domain confusion.

The Web Browser for Android (aka explore.web.browser) application 1.2 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Android WebView in Android before 4.4 allows remote attackers to bypass the Same Origin Policy via a crafted attribute containing a \u0000 character, as demonstrated by an onclick="window.open('\u0000javascript: sequence to the Android Browser application 4.2.1 or a third-party web browser.

The Android browser in Android cannot properly restrict modifications to cookies established in HTTPS sessions, which allows man-in-the-middle attackers to overwrite or delete arbitrary cookies via a Set-Cookie header in an HTTP response, related to lack of the HTTP Strict Transport Security (HSTS) includeSubDomains feature, aka a "cookie forcing" issue.