CVE-2023-34415

2023-06-1910:40:49

mozilla

www.cve.org

firefox

security vulnerability

site-isolated process

open redirect

spectre-like attacks

data urls

http redirects

firefox 114

7.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

24.1%

JSON

When choosing a site-isolated process for a document loaded from a data: URL that was the result of a redirect, Firefox would load that document in the same process as the site that issued the redirect. This bypassed the site-isolation protections against Spectre-like attacks on sites that host an “open redirect”. Firefox no longer follows HTTP redirects to data: URLs. This vulnerability affects Firefox < 114.

CNA Affected

[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "114",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]