Vulnerability · Published Feb 3, 2026 · Assigned by GitHub_M

CVE-2026-25151Qwik City has a CSRF Protection Bypass via Content-Type Header Validation

Medium 5.9

In plain English

A medium-severity cross-site request forgery in qwik from QwikDev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.2%top 92.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Qwik is a performance focused javascript framework. Prior to version 1.19.0, Qwik City’s server-side request handler inconsistently interprets HTTP request headers, which can be abused by a remote attacker to circumvent form submission CSRF protections using specially crafted or multi-valued Content-Type headers. This issue has been patched in version 1.19.0.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@builder.io/qwik-city1.19.0GHSA-r666-8gjf-4v5f

Affected products (as reported)

VendorProductVersions
QwikDev qwik < 1.19.0

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N

References