CVE-2026-113650CWE-674

CVE-2026-113650

Medium · published October 20, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
21.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00301 · 21.7th percentile
Weakness
CWE-674 · Uncontrolled Recursion
Published
2026-10-20T21:17Z
References (4)
https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498 · [email protected]https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea · [email protected]https://github.com/apostrophecms/apostrophe/releases/tag/[email protected] · [email protected]https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-c9rx-x947-fp3h · [email protected]
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 16:19Z
    ApostropheCMS sanitize-html: unbounded recursion when re-sanitizing the fallback of a discarded iframe (stack overflow, nestingLimit not enforced)
    cvelistv5
  • 20 OCT 16:19Z
    ApostropheCMS sanitize-html: unbounded recursion when re-sanitizing the fallback of a discarded iframe (stack overflow, nestingLimit not enforced)
    cvelistv5