CVE-2026-27901
Medium · 6.1CVSS
6.1
EPSS
0.4%
Published
Feb 26, 2026
CISA due date
—
The record
Svelte performance oriented web framework. Prior to version 5.53.5, the contents of `bind:innerText` and `bind:textContent` on `contenteditable` elements were not properly escaped. This could enable HTML injection and Cross-Site Scripting (XSS) if rendering untrusted data as the binding's initial value on the server. Version 5.53.5 fixes the issue.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | svelte | 0 | 5.53.5 |
| Chainguard | langfuse-3-worker | 0 | 3.163.0-r0 |
| Chainguard | langfuse-fips-3-worker | 0 | 3.163.0-r0 |
| Wolfi | langfuse-3-worker | 0 | 3.163.0-r0 |
Related vulnerabilities
- GHSA-phwv-c562-gvmh Svelte vulnerable to XSS during SSR with contenteditable `bind:innerText` and… Same vulnerability
- CVE-2026-42567 Svelte is a performance oriented web framework. Also affects svelte
- CVE-2026-42599 Svelte is a performance oriented web framework. Also affects svelte
- CVE-2026-42573 Svelte is a performance oriented web framework. Also affects svelte
- GHSA-f3cj-j4f6-wq85 Svelte: SSR XSS via Insecure Promise Serialization in hydratable Also affects svelte
- GHSA-rcqx-6q8c-2c42 Svelte Vulnerable to XSS via DOM Clobbering of Internal Framework State Also affects svelte
- GHSA-9rmh-mm8f-r9h6 Svelte: ReDoS in `` Tag Validation Also affects svelte
- GHSA-pr6f-5x2q-rwfp Svelte SSR vulnerable to cross-site scripting via spread attributes Also affects svelte