{
"id": "GHSA-458m-m9vv-frq3",
"aliases": [
"CVE-2026-84144"
],
"details": "Internally found bugs present in Firefox 154 and Firefox ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.",
"affected": [],
"modified": "2026-09-03T18:31:34Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"published": "2026-09-01T15:31:10Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84144",
"type": "ADVISORY"
},
{
"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2054619%2C2054620%2C2054624%2C2054702%2C2054726%2C2054775%2C2055703%2C2058006%2C2058013%2C2058098%2C2058627%2C2058661%2C2059127%2C2059128%2C2059180%2C2059199%2C2059205%2C2061320%2C2061430%2C2061495%2C2061505%2C2061532%2C2061799",
"type": "WEB"
},
{
"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2054625%2C2059002%2C2061775",
"type": "WEB"
},
{
"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2054691%2C2058085%2C2059144%2C2059191%2C2059192%2C2061521%2C2062395%2C2062404",
"type": "WEB"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-82",
"type": "WEB"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-85",
"type": "WEB"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-86",
"type": "WEB"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-88",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-119"
],
"severity": "HIGH",
"github_reviewed": false,
"nvd_published_at": "2026-09-01T13:20:08Z",
"github_reviewed_at": null
}
}