{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54354", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-01-10T01:51:52.987Z", "datePublished": "2026-08-25T15:15:55.858Z", "dateUpdated": "2026-08-25T16:12:06.863Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-25T15:15:55.858Z"}, "datePublic": "2023-04-11T00:00:00.000Z", "title": "Nokogiri before 1.14.3 Null Pointer Dereference via libxml2", "descriptions": [{"lang": "en", "value": "Nokogiri before 1.14.3 (CRuby implementation only, when using the packaged libxml2) bundles libxml2 v2.10.3, which is vulnerable to NULL pointer dereferences in XML Schema processing (xmlSchemaFixupComplexType, CVE-2023-28484, and xmlSchemaCheckCOSSTDerivedOK). An attacker who supplies a crafted/malformed XML schema can cause libxml2 to dereference a NULL pointer and potentially segfault, resulting in a denial of service. Nokogiri 1.14.3 upgrades the packaged libxml2 to v2.10.4 to resolve these issues."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "NULL Pointer Dereference", "cweId": "CWE-476", "type": "CWE"}]}], "affected": [{"vendor": "sparklemotion", "product": "nokogiri", "defaultStatus": "unaffected", "packageURL": "pkg:gem/nokogiri", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "1.14.3"}, {"version": "1.14.3", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.14.3"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-pxvg-2qj5-37jq)"}, {"url": "https://github.com/sparklemotion/nokogiri/commit/09a2dd453007f9c7205274623acdd73747c22d64", "tags": ["patch"], "name": "Patch Commit"}, {"url": "https://github.com/sparklemotion/nokogiri/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f", "tags": ["patch"], "name": "Patch Commit"}, {"url": "https://github.com/sparklemotion/nokogiri/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6", "tags": ["patch"], "name": "Patch Commit"}, {"name": "VulnCheck Advisory: Nokogiri before 1.14.3 Null Pointer Dereference via libxml2", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-25T16:11:24.833421Z", "id": "CVE-2023-54354", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-25T16:12:06.863Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:gem/nokogiri", "product": "nokogiri", "vendor": "sparklemotion", "versions": [{"lessThan": "1.14.3", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "1.14.3", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Nokogiri before 1.14.3 (CRuby implementation only, when using the packaged libxml2) bundles libxml2 v2.10.3, which is vulnerable to NULL pointer dereferences in XML Schema processing (xmlSchemaFixupComplexType, CVE-2023-28484, and xmlSchemaCheckCOSSTDerivedOK). An attacker who supplies a crafted/malformed XML schema can cause libxml2 to dereference a NULL pointer and potentially segfault, resulting in a denial of service. Nokogiri 1.14.3 upgrades the packaged libxml2 to v2.10.4 to resolve these issues."}], "id": "CVE-2023-54354", "lastModified": "2026-08-25T16:16:44.543", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-08-25T16:16:44.543", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/sparklemotion/nokogiri/commit/09a2dd453007f9c7205274623acdd73747c22d64"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/sparklemotion/nokogiri/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/sparklemotion/nokogiri/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "nokogiri", "source": "cna", "vendor": "sparklemotion"}, "product": "nokogiri", "vendor": "nokogiri"}], "created": "2026-08-25T16:30:05.350615+00:00", "updated": "2026-08-25T16:30:05.350862+00:00", "vendors": ["nokogiri", "nokogiri$PRODUCT$nokogiri"]}