GHSA-RR5W-74H2-XQHC

Vulnerability from github – Published: 2026-05-12 15:31 – Updated: 2026-06-30 03:36
VLAI
Details

Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-8401"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-653",
      "CWE-693"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-12T15:16:20Z",
    "severity": "CRITICAL"
  },
  "details": "Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3.",
  "id": "GHSA-rr5w-74h2-xqhc",
  "modified": "2026-06-30T03:36:39Z",
  "published": "2026-05-12T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8401"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-51"
    },
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      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-48"
    },
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      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-47"
    },
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      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-45"
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      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8401.json"
    },
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476492"
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.