What is CVE-2026-25150?

CVE-2026-25150 is a critical-severity vulnerability in Qwikdev Qwik, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.3/10. Published 2026-02-03.

How severe is CVE-2026-25150?

Critical severity. CVSS v3 base score is 9.3 out of 10.

Prototype Pollution in Qwikdev Qwik

CVE-2026-25150

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 n…

Vulnerability class: Prototype Pollution

EPSS: 0.001 (22.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:L.

Affected products

Qwikdev Qwik — versions < 1.19.0

Weakness classification (CWE)

CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

References

https://github.com/QwikDev/qwik/security/advisories/GHSA-xqg6-98cw-gxhq (x_refsource_CONFIRM)
https://github.com/QwikDev/qwik/commit/5f65bae2bc33e6ca0c21e4cfcf9eae05077716f7 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25150?: CVE-2026-25150 is a critical-severity vulnerability in Qwikdev Qwik, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.3/10. Published 2026-02-03.
How severe is CVE-2026-25150?: Critical severity. CVSS v3 base score is 9.3 out of 10.