Is CVE-2026-25150 actively exploited?

No active exploitation of CVE-2026-25150 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-25150 be exploited remotely?

Yes. CVE-2026-25150 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-25150?

CVE-2026-25150 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2026-25150

CRITICAL

CVE-2026-25150

CWE-1321Published: February 3, 2026· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

Qwik is a performance focused javascript framework. Prior to version 1.19.0, a prototype pollution vulnerability exists in the formToObj() function within @builder.io/qwik-city middleware. The function processes form field names with dot notation (e.g., user.name) to create nested objects, but fails to sanitize dangerous property names like __proto__, constructor, and prototype. This allows unauthenticated attackers to pollute Object.prototype by sending crafted HTTP POST requests, potentially leading to privilege escalation, authentication bypass, or denial of service. This issue has been patched in version 1.19.0.

NVD Source

Technical Analysis

CVE-2026-25150 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.