# CVE-2026-82257

## Summary

- **CVE ID:** CVE-2026-82257
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N)
- **CWE:** CWE-1321
- **Published:** Aug 28, 2026
- **Last Modified:** Aug 28, 2026

## 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.

## Affected Products

- sveltejs — kit (0)
- sveltejs — kit (2.69.1)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 10.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._