GHSA-93PV-VHRF-WV64

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

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-8391"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-475"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-12T14:17:12Z",
    "severity": "MODERATE"
  },
  "details": "Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3.",
  "id": "GHSA-93pv-vhrf-wv64",
  "modified": "2026-06-30T03:36:39Z",
  "published": "2026-05-12T15:31:40Z",
  "references": [
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8391"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-51"
    },
    {
      "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-2026-8391.json"
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476475"
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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:L/I:N/A:N",
      "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

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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.