CVE-2026-56132

{"id": "CVE-2026-56132", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-56132", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-22T14:59:42.500548Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.9, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.5, "exploitabilityScore": 1.4}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "libexpat project", "product": "libexpat", "versions": [{"status": "affected", "version": "0", "lessThan": "2.8.2", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-06-19T06:17:10.253", "references": [{"url": "https://github.com/libexpat/libexpat/pull/1272", "source": "cve@mitre.org"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-821"}]}], "descriptions": [{"lang": "en", "value": "In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers."}], "lastModified": "2026-06-22T16:16:40.507", "sourceIdentifier": "cve@mitre.org"}