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CVE-2026-56403

🗓️ 21 Jun 2026 15:43:55Reported by mitreType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

CVE-2026-56403: libexpat before 2.8.2 has an integer overflow in storeAtts.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-56403
21 Jun 202615:43
attackerkb
Cvelist
CVE-2026-56403
21 Jun 202615:43
cvelist
Debian CVE
CVE-2026-56403
21 Jun 202615:43
debiancve
EUVD
EUVD-2026-38180
21 Jun 202615:43
euvd
NVD
CVE-2026-56403
21 Jun 202616:16
nvd
OSV
DEBIAN-CVE-2026-56403
21 Jun 202620:48
osv
Positive Technologies
PT-2026-51239
21 Jun 202600:00
ptsecurity
Vulners
CNA
Node
[
  {
    "defaultStatus": "unaffected",
    "product": "libexpat",
    "vendor": "libexpat project",
    "versions": [
      {
        "lessThan": "2.8.2",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

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21 Jun 2026 16:16Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.9
7