Summary
Umbraco CMS vulnerable to Generation of Error Message Containing Sensitive Information
Explanation of the vulnerability
Management API endpoints leaked stack traces in case of Internal server errors, no matter if the debug setting was disabled.
E.g. when paging with negative numbers in some apis
Impact
Some endpoints in the Management API can return stack trace information, even when Umbraco is not in debug mode.
CVE-2024-43376 has a CVSS score of 4.3 (Medium). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (14.1.2); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is CVE-2024-43376? CVE-2024-43376 is a medium-severity security vulnerability in Umbraco.Cms.Api.Management (nuget), affecting versions >= 14.0.0, < 14.1.2. It is fixed in 14.1.2.
- How severe is CVE-2024-43376? CVE-2024-43376 has a CVSS score of 4.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of Umbraco.Cms.Api.Management are affected by CVE-2024-43376? Umbraco.Cms.Api.Management (nuget) versions >= 14.0.0, < 14.1.2 is affected.
- Is there a fix for CVE-2024-43376? Yes. CVE-2024-43376 is fixed in 14.1.2. Upgrade to this version or later.
- Is CVE-2024-43376 exploitable, and should I be worried? Whether CVE-2024-43376 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2024-43376 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2024-43376? Upgrade
Umbraco.Cms.Api.Managementto 14.1.2 or later.