--- title: "CVE-2026-110907: Backdrop CMS Core - Broken Access Control" description: "Backdrop CMS Core 1.35.x < 1.35.2 and 1.34.x < 1.34.6 contain an information disclosure vulnerability caused by insufficient access control on token types in the token browser, letting attackers access restricted token types, exploit requires no special privileges." url: https://panop.io/threat-heartbeat/CVE-2026-110907/ --- # CVE-2026-110907 Backdrop CMS Core - Broken Access Control Backdrop CMS Core 1.35.x < 1.35.2 and 1.34.x < 1.34.6 contain an information disclosure vulnerability caused by insufficient access control on token types in the token browser, letting attackers access restricted token types, exploit requires no special privileges. CVSS base score 7.5 /10 High CISA KEV Not listed Public exploit None known Authentication Not required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-110907) ## Details Type Broken Access Control Impact Information Disclosure CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Published 15 October 2026 Updated 15 October 2026 Weakness [CWE-669](https://cwe.mitre.org/data/definitions/669.html) ## Vendor fix Upgrade to versions 1.35.2, 1.34.6 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-2026-110907](https://nvd.nist.gov/vuln/detail/CVE-2026-110907) - [https://backdropcms.org/security/backdrop-sa-core-2026-009](https://backdropcms.org/security/backdrop-sa-core-2026-009) [← 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)