What is GHSA-88QP-P4QG-RQM6?

GHSA-88QP-P4QG-RQM6 is a medium-severity type confusion vulnerability in @sveltejs/kit (npm), affecting versions >= 2.49.0, <= 2.52.1. It is fixed in 2.52.2. An object is accessed using a type that is incompatible with its actual type, causing the runtime to interpret memory incorrectly.

Which versions of @sveltejs/kit are affected by GHSA-88QP-P4QG-RQM6?

@sveltejs/kit (npm) versions >= 2.49.0, <= 2.52.1 is affected.

Is there a fix for GHSA-88QP-P4QG-RQM6?

Yes. GHSA-88QP-P4QG-RQM6 is fixed in 2.52.2. Upgrade to this version or later.

Is GHSA-88QP-P4QG-RQM6 exploitable, and should I be worried?

Whether GHSA-88QP-P4QG-RQM6 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether GHSA-88QP-P4QG-RQM6 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

GHSA-88QP-P4QG-RQM6 in @sveltejs/kit | Intelligent Application Security

Q: Which versions of @sveltejs/kit are affected by GHSA-88QP-P4QG-RQM6?

@sveltejs/kit (npm) versions >= 2.49.0, <= 2.52.1 is affected.

Q: Is there a fix for GHSA-88QP-P4QG-RQM6?

Yes. GHSA-88QP-P4QG-RQM6 is fixed in 2.52.2. Upgrade to this version or later.

Q: Is GHSA-88QP-P4QG-RQM6 exploitable, and should I be worried?

Whether GHSA-88QP-P4QG-RQM6 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether GHSA-88QP-P4QG-RQM6 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix GHSA-88QP-P4QG-RQM6?

Upgrade @sveltejs/kit to 2.52.2 or later.

Summary

Versions of @sveltejs/kit prior to 2.52.2 with remote functions enabled are vulnerable to CPU exhaustion. Malformed form data can cause the server to become unresponsive while processing a request, resulting in denial of service.

Only applications using both experimental.remoteFunctions and form are vulnerable.

Impact

An object is accessed using a type that is incompatible with its actual type, causing the runtime to interpret memory incorrectly. Typical impact: memory safety violations, unexpected behavior, or code execution.

Affected versions

@sveltejs/kit (>= 2.49.0, <= 2.52.1)

Security releases

@sveltejs/kit → 2.52.2 (npm)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

See it in your environment

Remediation advice

Upgrade @sveltejs/kit to 2.52.2 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is GHSA-88QP-P4QG-RQM6? GHSA-88QP-P4QG-RQM6 is a medium-severity type confusion vulnerability in @sveltejs/kit (npm), affecting versions >= 2.49.0, <= 2.52.1. It is fixed in 2.52.2. An object is accessed using a type that is incompatible with its actual type, causing the runtime to interpret memory incorrectly.
Which versions of @sveltejs/kit are affected by GHSA-88QP-P4QG-RQM6? @sveltejs/kit (npm) versions >= 2.49.0, <= 2.52.1 is affected.
Is there a fix for GHSA-88QP-P4QG-RQM6? Yes. GHSA-88QP-P4QG-RQM6 is fixed in 2.52.2. Upgrade to this version or later.
Is GHSA-88QP-P4QG-RQM6 exploitable, and should I be worried? Whether GHSA-88QP-P4QG-RQM6 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether GHSA-88QP-P4QG-RQM6 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix GHSA-88QP-P4QG-RQM6? Upgrade @sveltejs/kit to 2.52.2 or later.

Other vulnerabilities in @sveltejs/kit

CVE-IDSeverityPackage summary

GHSA-HGV7-V322-MMGRMedium@sveltejs/kit: @sveltejs/kit: `query.batch` cross-talk CVE-2026-40074Medium@sveltejs/kit: @sveltejs/kit: Unvalidated redirect in handle hook causes Denial-of-Service CVE-2026-40073High@sveltejs/kit: @sveltejs/adapter-node has a BODY_SIZE_LIMIT bypass GHSA-FPG4-JHQR-589CLow@sveltejs/kit: SvelteKit has deserialization expansion in unvalidated `form` remote function leading to Denial of…GHSA-VRHM-GVG7-FPCFMedium@sveltejs/kit: Memory exhaustion in SvelteKit remote form deserialization (experimental only)