GHSA-29g2-3rmr-qm68

Source

https://github.com/advisories/GHSA-29g2-3rmr-qm68

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-29g2-3rmr-qm68/GHSA-29g2-3rmr-qm68.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-29g2-3rmr-qm68

Aliases

CVE-2026-66062

Published

2026-08-07T16:50:02Z

Modified

2026-08-07T17:10:58Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator

Summary

SvelteKit: ReDoS (O(n^2)) in content negotiation — unauthenticated DoS via the Accept header

Details

Impact

SvelteKit is vulnerable to remote CPU-exhaustion DoS attacks via specifically-crafted Accept headers. The impact is mitigated by default header length limits on most platforms, but in the case of raised or absent limits a denial of service is possible.

Patches

The vulnerability is patched in @sveltejs/kit version 2.70.2.

Database specific

{
    "cwe_ids": [
        "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-07T16:50:02Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
}

References

Affected packages

npm / @sveltejs/kit

Package

Name: @sveltejs/kit; View open source insights on deps.dev
Purl: pkg:npm/%40sveltejs/kit

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.70.2

Database specific

last_known_affected_version_range

"<= 2.70.1"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-29g2-3rmr-qm68/GHSA-29g2-3rmr-qm68.json"