What is CVE-2026-113650?

CVE-2026-113650 is a medium-severity vulnerability in Apostrophecms Apostrophe, classified under Uncontrolled Recursion. CVSS score: 5.3/10. Published 2026-10-20.

How severe is CVE-2026-113650?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Apostrophecms Apostrophe

CVE-2026-113650

ApostropheCMS is an open-source Node.js content management system. In sanitize-html 2.18.0, when an <iframe> is not allowed and disallowedTagsMode is 'discard' (the defaults), its raw-text content is re-sanitized by a recursive call to sanitizeHtml(text, options). The recursion has no bound and starts each nested call with a fresh state. This vulnerability is fixed in 2.18.1.

Published 2026-10-20 · last modified 2026-10-20.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apostrophecms Apostrophe — versions < 4.34.0
Apostrophecms Sanitize-Html — versions >= 2.18.0, < 2.18.1

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

References

Frequently asked questions

What is CVE-2026-113650?: CVE-2026-113650 is a medium-severity vulnerability in Apostrophecms Apostrophe, classified under Uncontrolled Recursion. CVSS score: 5.3/10. Published 2026-10-20.
How severe is CVE-2026-113650?: Medium severity. CVSS v3 base score is 5.3 out of 10.