CVE-2026-82257

Description

SvelteKit versions before 2.69.1 contain a prototype pollution vulnerability in remote form functions with file input fields that accept arbitrary user-controlled path names. Attackers can manipulate the deletion path to remove methods on the prototype, potentially disabling application functionality.

CVSS Vector

References

• https://github.com/sveltejs/kit/security/advisories/GHSA-866w-xmhq-wj7x
• https://www.vulncheck.com/advisories/sveltekit-before-2.69.1-prototype-pollution-via-file-input