CVE-2026-117944 (GCVE-0-2026-117944)
Vulnerability from cvelistv5
Published
2026-10-27 14:05
Modified
2026-10-27 18:29
Severity ?
Summary
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
References
Impacted products
Vendor Product Version
Mozilla Firefox Unaffected: 115.44
Unaffected: 153.6
Unaffected: 159
 Create a notification for this product.
   Mozilla Thunderbird Unaffected: 153.6
Unaffected: 159
 Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "115.*",
              "status": "unaffected",
              "version": "115.44",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "153.*",
              "status": "unaffected",
              "version": "153.6",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "159",
              "versionType": "rpm"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "153.*",
              "status": "unaffected",
              "version": "153.6",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "159",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "OpenAI Codex Security (kylebot)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6."
            }
          ],
          "value": "Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T18:29:26.366Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2082064"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-118/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-119/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-120/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-121/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-122/"
        }
      ],
      "title": "Use-after-free in the Layout component"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2026-117944",
    "datePublished": "2026-10-27T14:05:34.637Z",
    "dateReserved": "2026-10-27T14:05:34.464Z",
    "dateUpdated": "2026-10-27T18:29:26.366Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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