FKIE_CVE-2026-45186

Vulnerability from fkie_nvd - Published: 2026-05-10 07:16 - Updated: 2026-05-14 17:20
Severity ?
2.9 (Low) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.
References
cve@mitre.orghttps://github.com/libexpat/libexpat/pull/1216Exploit, Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/05/11/16Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
libexpat_project libexpat *
To clipboard 

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  "descriptions": [
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      "value": "In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input."
    }
  ],
  "id": "CVE-2026-45186",
  "lastModified": "2026-05-14T17:20:32.570",
  "metrics": {
    "cvssMetricV31": [
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          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 2.9,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
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        "impactScore": 1.4,
        "source": "cve@mitre.org",
        "type": "Secondary"
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        "impactScore": 3.6,
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-407"
        }
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      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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