What is GHSA-6mgf-42wv-8j7p?

GHSA-6mgf-42wv-8j7p is a security advisory published by GitHub Security Advisories with Medium severity. SvelteKit versions before 2.69.1 contain a prototype pollution vulnerability in remote form...

Which CVE IDs does GHSA-6mgf-42wv-8j7p cover?

GHSA-6mgf-42wv-8j7p covers the following CVE IDs: CVE-2026-82257. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-6mgf-42wv-8j7p?

GHSA-6mgf-42wv-8j7p has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

GHSA-6mgf-42wv-8j7pMediumCVSS 4.3

SvelteKit versions before 2.69.1 contain a prototype pollution vulnerability in remote form...

Vendor

GitHub Security Advisories

Published

August 28, 2026

Last Modified

August 28, 2026

🔗 CVE IDs covered (1)

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.

🔗 References (4)

https://github.com/sveltejs/kit/security/advisories/GHSA-866w-xmhq-wj7x
https://nvd.nist.gov/vuln/detail/CVE-2026-82257
https://www.vulncheck.com/advisories/sveltekit-before-2.69.1-prototype-pollution-via-file-input
https://github.com/advisories/GHSA-6mgf-42wv-8j7p