CVE-2026-82261
7.5 · HIGHOverview
CVE-2026-82261 is a high-severity vulnerability affecting svelte sveltekit. It was published on August 28, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions and form enabled contain a CPU exhaustion vulnerability in form deserialization. An attacker can send malformed form data to cause the server to become unresponsive while processing the request, resulting in denial of service. Fixed in 2.52.2.
Remediation
Check the references section for vendor advisories and patches from svelte. Update sveltekit to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| svelte | sveltekit | >= 2.49.0, < 2.52.2 | Affected |
Frequently Asked Questions
What is CVE-2026-82261?
CVE-2026-82261 is a high-severity vulnerability affecting svelte sveltekit. It was published on August 28, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-82261?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-82261?
Check the references section for vendor advisories and patches from svelte. Update sveltekit to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-82261?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-82261 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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