CVE-2026-113661 ApostropheCMS: Incomplete CVE-2026-53606: `meta http-equiv=refresh` `content` still ships `javascript:` / `data:` URLs
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-113661?
CVE-2026-113661 is a medium-severity vulnerability in apostrophecms apostrophe, published on 20 Oct 2026.
Official description
ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Prior to sanitize-html 2.18.0, a non-default configuration that allows meta refresh elements and their http-equiv and content attributes can retain unsafe script or redirect destinations embedded in the refresh content value. This issue is fixed in sanitize-html 2.18.0.
Weakness: CWE-79
Which versions are affected by CVE-2026-113661?
2 open source packages ship an affected version, including sanitize-html.
| Package | Affected | Fixed in |
|---|---|---|
sanitize-html npm | All versions | 2.18.0 |
sanitize-html npm | All versions | 2.18.0 |
How do I fix CVE-2026-113661?
Upgrade sanitize-html to 2.18.0 or later.
Is CVE-2026-113661 being exploited?
There is no known exploitation of CVE-2026-113661 in the wild and no public exploit code.
Sources
Also known as ECHO-4932-55c5-4535, GHSA-cv27-6wvh-8x7j.