Same-origin policy bypass in the DOM: Networking component_CVE-2026-8948

9.1 / 10

CRITICAL

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

Description

Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151.

AI Analysis

Same-origin policy bypass vulnerability in Firefox's DOM: Networking component

Basic Information

ID CVE-2026-8948

Source mozilla

Published May 19, 2026 at 12:29

Modified May 19, 2026 at 16:42

Affected Product

Vendor Mozilla

Product Firefox

Version 151

CWE Classification

CWE-942

AI Assessment

AI Score 9.1 / 10

AI Severity Critical

Vendor Mozilla Foundation

Product Firefox

Version < 151

References

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    "lastseen": "",
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    "published": "2026-05-19T12:29:39.355Z",
    "modified": "2026-05-19T16:42:32.190Z",
    "type": "cve",
    "title": "Same-origin policy bypass in the DOM: Networking component",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=2038803\nhttps://www.mozilla.org/security/advisories/mfsa2026-46/",
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    "product": "Firefox",
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    "ai_description": "Same-origin policy bypass vulnerability in Firefox's DOM: Networking component",
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