{"cve":"CVE-2026-32701","nvd":{"published":"2026-03-20T09:16:14.520","modified":"2026-06-17T10:36:14.017","status":"Analyzed","description":"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—such as items.toString, items.push, items.valueOf, or items.length—could 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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-843","CWE-1321"],"references":["https://github.com/QwikDev/qwik/commit/7b5867c3dd8925df9aa96c4296b1e95a4c2af87d","https://github.com/QwikDev/qwik/security/advisories/GHSA-whhv-gg5v-864r"],"products":["qwik:qwik"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-32701","score":0.00443,"percentile":0.38491,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-whhv-gg5v-864r","url":"https://osv.dev/vulnerability/GHSA-whhv-gg5v-864r","summary":"Qwik City has array method pollution in FormData processing allows type confusion and DoS","modified":"2026-03-20T16:11:21.822051Z","packages":[{"ecosystem":"npm","name":"@builder.io/qwik-city","purl":"pkg:npm/%40builder.io/qwik-city","ranges":["<1.19.2"],"fixed":["1.19.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}