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CVE-2026-113666

7.1 · HIGH

ApostropheCMS is an open-source Node.js content management system.

Published Oct 20, 2026CWE-400EPSS 0.44%

Overview

CVE-2026-113666 is a high-severity vulnerability. It was published on October 20, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

ApostropheCMS is an open-source Node.js content management system. Prior to 1.1.0 of db-connect and 4.33.0 of ApostropheCMS, an account with view-draft access can submit a projection exclusion path that traverses through a constructor prototype chain to a shared prototype member when a consumer uses a SQLite, PostgreSQL, or multipostgres adapter and has a matching document. Every editing role has view-draft access, while guestApiAccess broadens this prerequisite to any logged-in account. The unsetNestedField helper then deletes the shared runtime member, causing persistent process-wide integrity and availability effects; the default MongoDB adapter is not affected. This issue is fixed in db-connect 1.1.0 and ApostropheCMS 4.33.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ceGitHubgithub.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350GitHubgithub.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/[email protected]GitHubgithub.com/apostrophecms/apostrophe/releases/tag/[email protected]GitHubgithub.com/apostrophecms/apostrophe/security/advisories/GHSA-j5rq-xfvr-p969GitHubgithub.com/apostrophecms/apostrophe/security/advisories/GHSA-j5rq-xfvr-p969

How CyberStrike helps

Frequently asked questions

What is CVE-2026-113666?

CVE-2026-113666 is a high-severity vulnerability. It was published on October 20, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-113666?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-113666?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-113666?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-113666 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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