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CVE-2026-93990 Expat through 2.8.4 Malformed UTF-16 Acceptance via Unchecked Surrogate

🗓️ 19 Sep 2026 22:58:11Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Expat through 2.8.4 accepts malformed UTF-16 surrogates enabling XML injection.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-93990
20 Sep 202600:01
circl
cve
CVE
CVE-2026-93990
19 Sep 202622:58
cve
euvd
EUVD
EUVD-2026-83618
20 Sep 202600:30
euvd
nvd
NVD
CVE-2026-93990
19 Sep 202623:17
nvd
[
  {
    "vendor": "libexpat",
    "product": "libexpat",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:github/libexpat/libexpat",
    "repo": "https://github.com/libexpat/libexpat",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThanOrEqual": "2.8.4"
      }
    ]
  }
]

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19 Sep 2026 22:58Current
CVSS 3.17.5
CVSS 48.7
7