{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32701", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-13T14:33:42.823Z", "datePublished": "2026-03-20T08:52:41.149Z", "dateUpdated": "2026-03-20T08:52:41.149Z"}, "containers": {"cna": {"title": "Qwik has array method pollution in FormData processing, allowing type confusion and DoS", "problemTypes": [{"descriptions": [{"cweId": "CWE-843", "lang": "en", "description": "CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1321", "lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "type": "CWE"}]}], "metrics": [{"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"}}], "references": [{"name": "https://github.com/QwikDev/qwik/security/advisories/GHSA-whhv-gg5v-864r", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/QwikDev/qwik/security/advisories/GHSA-whhv-gg5v-864r"}, {"name": "https://github.com/QwikDev/qwik/commit/7b5867c3dd8925df9aa96c4296b1e95a4c2af87d", "tags": ["x_refsource_MISC"], "url": "https://github.com/QwikDev/qwik/commit/7b5867c3dd8925df9aa96c4296b1e95a4c2af87d"}], "affected": [{"vendor": "QwikDev", "product": "qwik", "versions": [{"version": "< 1.19.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-20T08:52:41.149Z"}, "descriptions": [{"lang": "en", "value": "Qwik is a performance-focused JavaScript framework. Versions prior to 1.19.2 improperly inferred arrays from dotted form field names during FormData parsing. By submitting mixed array-index and object-property keys for the same path, an attacker could cause user-controlled properties to be written onto values that application code expected to be arrays. When processing application/x-www-form-urlencoded or multipart/form-data requests, Qwik City converted dotted field names (e.g., items.0, items.1) into nested structures. If a path was interpreted as an array, additional attacker-supplied keys on that path\u2014such as items.toString, items.push, items.valueOf, or items.length\u2014could alter the resulting server-side value in unexpected ways, potentially leading to request handling failures, denial of service through malformed array state or oversized lengths, and type confusion in downstream code. This issue was fixed in version 1.19.2."}], "source": {"advisory": "GHSA-whhv-gg5v-864r", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Qwik is a performance-focused JavaScript framework. Versions prior to 1.19.2 improperly inferred arrays from dotted form field names during FormData parsing. By submitting mixed array-index and object-property keys for the same path, an attacker could cause user-controlled properties to be written onto values that application code expected to be arrays. When processing application/x-www-form-urlencoded or multipart/form-data requests, Qwik City converted dotted field names (e.g., items.0, items.1) into nested structures. If a path was interpreted as an array, additional attacker-supplied keys on that path\u2014such as items.toString, items.push, items.valueOf, or items.length\u2014could alter the resulting server-side value in unexpected ways, potentially leading to request handling failures, denial of service through malformed array state or oversized lengths, and type confusion in downstream code. This issue was fixed in version 1.19.2."}], "id": "CVE-2026-32701", "lastModified": "2026-03-20T09:16:14.520", "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": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-20T09:16:14.520", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/QwikDev/qwik/commit/7b5867c3dd8925df9aa96c4296b1e95a4c2af87d"}, {"source": "security-advisories@github.com", "url": "https://github.com/QwikDev/qwik/security/advisories/GHSA-whhv-gg5v-864r"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-843"}, {"lang": "en", "value": "CWE-1321"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-03-20T10:22:38.678878+00:00", "value": {"mitigation_remediation": ["Upgrade Qwik to version 1.19.2 or newer"], "summary": {"action": "Upgrade", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "All versions of Qwik prior to 1.19.2 are affected. The vendor QwikDev released the fix in Qwik 1.19.2, which removes the flawed array inference logic.", "description_and_impact": "This vulnerability is caused by improper array inference in Qwik's FormData processing. When Qwik City parses form data with dotted array field names such as items.0 and items.1, it creates a nested array structure. An attacker can add additional object-property keys on the same array path, for example items.toString, items.push, items.length, or items.valueOf, which inject user-controlled properties into the array. The resulting type confusion can disrupt downstream processing, cause request handling failures, lead to denial of service through malformed array state or excessively large lengths, and potentially compromise data integrity. The weakness is documented as CWE-1321 (Improper Enumeration of Input Data) and CWE-843 (Incorrect Type Casting).", "risk_and_exploitability": "The CVSS score of 7.5 reflects a high severity. Although EPSS data is unavailable, the vulnerability is not listed in CISA's KEV catalog. An attacker can exploit this issue remotely by submitting crafted form data to a Qwik application over the network, without requiring authentication. The straightforward exploit path and high effect make this a significant risk for any exposed Qwik deployment."}}}}, "created": "2026-03-20T10:36:30.262462+00:00", "updated": "2026-03-20T10:36:30.262490+00:00", "vendors": []}