--- title: "CVE-2026-113666: ApostropheCMS - Prototype Pollution" description: "ApostropheCMS < 4.33.0 and db-connect < 1.1.0 contain a prototype pollution caused by traversal through constructor prototype chain in projection exclusion path, letting attackers with view-draft access cause persistent process-wide integrity and availability effects, exploit requires logged-in account with view-draft access." url: https://panop.io/threat-heartbeat/CVE-2026-113666/ --- # CVE-2026-113666 ApostropheCMS - Prototype Pollution ApostropheCMS < 4.33.0 and db-connect < 1.1.0 contain a prototype pollution caused by traversal through constructor prototype chain in projection exclusion path, letting attackers with view-draft access cause persistent process-wide integrity and availability effects, exploit requires logged-in account with view-draft access. CVSS base score 7.1 /10 High CISA KEV Not listed Public exploit None known Authentication Required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-113666) ## Details Type Prototype Pollution Impact Denial Of Service CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H Published 20 October 2026 Updated 21 October 2026 Weakness [CWE-400](https://cwe.mitre.org/data/definitions/400.html) ## Vendor fix Upgrade to db-connect 1.1.0 and ApostropheCMS 4.33.0 or later. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-113666](https://nvd.nist.gov/vuln/detail/CVE-2026-113666) - [https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-j5rq-xfvr-p969](https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-j5rq-xfvr-p969) - [https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce](https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce) - [https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350](https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350) - [https://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/db-connect@1.1.0](https://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/db-connect@1.1.0) - [https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0](https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)