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CVE-2026-76641 Expat Out-of-Bounds Read via dtdCopy

🗓️ 20 Aug 2026 17:31:10Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

Expat through 2.8.3 has an out-of-bounds read in storeAtts causing segfault via external entity parser creation.

Related
Affected
Refs
[
  {
    "defaultStatus": "affected",
    "vendor": "libexpat",
    "product": "libexpat",
    "packageURL": "pkg:github/libexpat/libexpat",
    "repo": "https://github.com/libexpat/libexpat",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "2.8.3"
      }
    ]
  }
]

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21 Aug 2026 11:21Current
CVSS 3.17.5
CVSS 48.7
EPSS0.00353
SSVC
34