cvedb.io
CVE-2026-27212
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2026-02-21T06:17:01.443 · Last modified 2026-06-17T10:26:51.280

Summary

Swiper is a free and mobile touch slider with hardware accelerated transitions and native behavior. Versions 6.5.1 through 12.1.1 have a Prototype pollution vulnerability. The vulnerability resides in line 94 of shared/utils.mjs, where the indexOf() function is used to check whether user provided input contain forbidden strings. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using Array.prototype. The exploit works across Windows and Linux and on Node and Bun runtimes. Any application that processes attacker-controlled input using this package may be affected by the following: Authentication Bypass, Denial of Service and RCE. This issue is

Affected products

swiperjs — swiper

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.