{"id":"CVE-2026-27971","aliases":["GHSA-p9x5-jp3h-96mm"],"url":"https://o3.security/vulnerability/CVE-2026-27971","summary":"Qwik affected by unauthenticated RCE via server$ Deserialization","details":"Qwik is a performance focused javascript framework. qwik <=1.19.0 is vulnerable to RCE due to an unsafe deserialization vulnerability in the server$ RPC mechanism that allows any unauthenticated user to execute arbitrary code on the server with a single HTTP request. Affects any deployment where require() is available at runtime. This vulnerability is fixed in 1.19.1.","published":"2026-03-03T22:55:38.064Z","modified":"2026-08-12T03:51:35.977443412Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@builder.io/qwik","fixedVersion":"1.19.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27971.json"},{"type":"ADVISORY","url":"https://github.com/QwikDev/qwik/security/advisories/GHSA-p9x5-jp3h-96mm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27971"},{"type":"PACKAGE","url":"https://github.com/QwikDev/qwik"},{"type":"WEB","url":"https://github.com/QwikDev/qwik/releases/tag/%40builder.io%2Fqwik%401.19.1"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:35.977443412Z"}}