CVE-2026-117883 (GCVE-0-2026-117883)

Vulnerability from cvelistv5 – Published: 2026-10-27 14:05 – Updated: 2026-10-27 18:28
VLAI
Title
Use-after-free in the DOM: HTML Parser component
Summary
Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Severity
No CVSS data available.
Assigner
mozilla CNA under the mitre root
CNA scorecard E 38/100 over 679 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Mozilla Firefox Unaffected: 115.44 , ≤ 115.* (rpm)
Unaffected: 153.6 , ≤ 153.* (rpm)
Unaffected: 159 , ≤ * (rpm)
guessed Create a notification for this product.
Mozilla Thunderbird Unaffected: 153.6 , ≤ 153.* (rpm)
Unaffected: 159 , ≤ * (rpm)
guessed Create a notification for this product.
Credits
Amy Burnett of OpenAI
Show details on NVD website
To clipboard 

{
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        }
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            }
          ],
          "value": "Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-10-27T18:28:20.060Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
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          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2076271"
        },
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        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-119/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-120/"
        },
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        },
        {
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    "datePublished": "2026-10-27T14:05:10.993Z",
    "dateReserved": "2026-10-27T14:05:10.818Z",
    "dateUpdated": "2026-10-27T18:28:20.060Z",
    "state": "PUBLISHED"
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          }
        ],
        "id": "CVE-2026-117883",
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        "metrics": {},
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      "current_release_date": "2026-11-03T20:28:36+00:00",
      "cve": "CVE-2026-117883",
      "id": "CVE-2026-117883",
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      "source": "Red Hat CSAF VEX",
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      "title": "firefox: thunderbird: Use-after-free in the DOM: HTML Parser component",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-117883.json",
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      "version": "5"
    }
  }
}



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