CVE-2026-128119
SvelteKit: Private `query.batch` functions could collide, producing unexpected parameter / function combinations
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. From version 2.60.1 until 3.1.1, applications using the experimental remote functions flag could assign the same generated identifier to separate non-exported query.batch functions. When those private functions shared a request batch, arguments intended for one function could be passed to another function, causing unexpected cross-function processing and possible disclosure of function arguments. This issue is fixed in 3.1.1.
| CWE | CWE-863 |
| Vendor | sveltejs |
| Product | kit |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
sveltejs / kit
>= 2.60.1, < 3.1.1