CVE-2026-128118: sveltejs kit · Information Exposure
Affects sveltejs kitSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 3.1.1 soon.
Data as of 13 Nov 2026, 19:50 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.5 |
|---|
- Patch
- Available – fixed in 3.1.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade sveltejs kit to 3.1.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| sveltejskit | Affected
| Fixed in
|
AI-suggested
Upgrade SvelteKit to version 3.1.1 or later, where the issue is fixed. No other mitigation is required as the vulnerability is resolved in this official release.
Description
SvelteKit versions from 3.0.0 up to but not including 3.1.1 contain a vulnerability where server-only modules imported via src/params.js could be bundled into client-side code. This exposure allows private environment values or other server secrets to be accessible in the client bundle. The issue is resolved in version 3.1.1.