An attacker with temporary script access to a site could have set a cookie containing invalid characters using document.cookie that could have led to unknown errors. This vulnerability affects Firefox < 119.
{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "firefox",
            "binary_version": "119.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "firefox-dev",
            "binary_version": "119.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "firefox-geckodriver",
            "binary_version": "119.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "firefox-mozsymbols",
            "binary_version": "119.0+build2-0ubuntu0.20.04.1"
        }
    ]
}