{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-128021", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-12T20:32:53.532Z", "datePublished": "2026-11-13T09:34:07.192Z", "dateUpdated": "2026-11-13T09:34:07.192Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-13T09:34:07.192Z"}, "datePublic": "2026-10-21T00:00:00.000Z", "title": "FrankenPHP before 1.13.2 Information Disclosure via libxml Error State in Worker Mode", "descriptions": [{"lang": "en", "value": "FrankenPHP before 1.13.2 contains an information disclosure vulnerability that allows later clients to read earlier clients' libxml errors because worker mode never resets LIBXML(error_list) between requests. Attackers sending requests to the same worker thread can call libxml_get_errors() or libxml_get_last_error() to obtain other clients' parsed-document fragments and server filesystem paths."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Exposure of Sensitive Information to an Unauthorized Actor", "cweId": "CWE-200", "type": "CWE"}]}], "affected": [{"vendor": "php", "product": "frankenphp", "defaultStatus": "unaffected", "packageURL": "pkg:golang/github.com/dunglas/frankenphp", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "1.13.2"}, {"version": "1.13.2", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:php:frankenphp:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.13.2"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 3.7, "baseSeverity": "LOW"}}], "references": [{"url": "https://github.com/php/frankenphp/security/advisories/GHSA-4gfw-9v29-gp9h", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-4gfw-9v29-gp9h)"}, {"name": "VulnCheck Advisory: FrankenPHP before 1.13.2 Information Disclosure via libxml Error State in Worker Mode", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/frankenphp-before-1.13.2-information-disclosure-via-libxml-error-state-in-worker-mode"}], "credits": [{"lang": "en", "value": "manus-use", "type": "reporter"}, {"lang": "en", "value": "alexandre-daubois", "type": "analyst"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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