GHSA-wqjv-9729-c5q2 CVE-2026-82256
SvelteKit: Big remote form function payloads can cause Node process to crash
- Severity
- 6.9 / 10
- Medium · CVSS 4.0
- Exploit chance (EPSS)
- 0.42%
- Chance of exploitation in the next 30 days. Higher than 36.61% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-248 Uncaught Exception
- Fix
2.69.1- Upgrade @sveltejs/kit to this version or later
Description
Big remote form function payloads can cause the Node process to crash. Doing this repeatedly can cause DoS.
Affected versions
npm
| Package | Vulnerable | Fixed in |
|---|---|---|
| @sveltejs/kit | < 2.69.1 |
2.69.1 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
@sveltejs/kit npm → 2.69.1
- npm
npm install @sveltejs/kit@2.69.1- yarn
yarn add @sveltejs/kit@2.69.1- pnpm
pnpm add @sveltejs/kit@2.69.1
Severity breakdown
CVSS 4.0 6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality (vulnerable system)
- None
- Integrity (vulnerable system)
- None
- Availability (vulnerable system)
- Low
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
- Exploit maturity
- Not defined
- Scope
- X
CVSS 3.1 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Weakness
CWE-248: Uncaught Exception
An exception is thrown from a function, but it is not caught.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-27mw-82g8-phjj SvelteKit : XSS via untrusted cache-control header in prerendered page | Low | Also affects @sveltejs/kit |
| GHSA-pfhg-q3qv-9q6r SvelteKit: URL redirection to untrusted site via enhanced form submission | Medium | Also affects @sveltejs/kit |
| GHSA-29g2-3rmr-qm68 SvelteKit: ReDoS (O(n^2)) in content negotiation — unauthenticated DoS via the Accept header | Medium | Also affects @sveltejs/kit |
| GHSA-866w-xmhq-wj7x SvelteKit: Prototype pollution in file input deletion path in remote-function forms | Medium | Also affects @sveltejs/kit |
| GHSA-hgv7-v322-mmgr @sveltejs/kit: `query.batch` cross-talk | Medium | Also affects @sveltejs/kit |
| GHSA-3f6h-2hrp-w5wx @sveltejs/kit: Unvalidated redirect in handle hook causes Denial-of-Service | High | Also affects @sveltejs/kit |
| GHSA-2crg-3p73-43xp @sveltejs/adapter-node has a BODY_SIZE_LIMIT bypass | High | Also affects @sveltejs/kit |
| GHSA-fpg4-jhqr-589c SvelteKit has deserialization expansion in unvalidated `form` remote function leading to Denial of Service (experimental only) | High | Also affects @sveltejs/kit |
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