CVE-2026-82257
5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Summary
SvelteKit versions before 2.69.1 contain a prototype pollution vulnerability in remote form functions with file input fields that accept arbitrary user-controlled path names. Attackers can manipulate the deletion path to remove methods on the prototype, potentially disabling application functionality.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| sveltejs | kit | 0 < 2.69.1 | affected |
| sveltejs | kit | 2.69.1 | unaffected |
Weaknesses
- CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/sveltejs/kit/security/advisories/GHSA-866w-xmhq-wj7x
- https://www.vulncheck.com/advisories/sveltekit-before-2.69.1-prototype-pollution-via-file-input
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