Summary
solspace/craft-freeform Has a DoS Vulnerability
Freeform plugin v4.1.29 uses vulnerable Axios ^1.7.7 allowing unauthenticated attackers to crash servers via malicious data: URIs causing memory exhaustion (CVE-2025-58754).
Freeform version: 4.1.29
Craft CMS version: 4.16.8
Impact
When Axios runs on Node.js and is given a URL with the data: scheme, it does not perform HTTP. Instead, its Node http adapter decodes the entire payload into memory (Buffer/Blob) and returns a synthetic 200 response. This path ignores maxContentLength / maxBodyLength (which only protect HTTP responses), so an attacker can supply a very large data: URI and cause the process to allocate unbounded memory and crash (DoS), even if the caller requested responseType: 'stream'.
https://github.com/axios/axios/security/advisories/GHSA-4hjh-wcwx-xvwj
https://github.com/axios/axios/pull/7011
https://github.com/axios/axios/commit/945435fc51467303768202250debb8d4ae892593
https://github.com/axios/axios/releases/tag/v1.12.0
The application allocates resources such as memory, threads, or file descriptors based on untrusted input without enforcing a cap. Typical impact: resource exhaustion leading to denial of service.
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 GHSA-58Q2-9X27-H2JM? GHSA-58Q2-9X27-H2JM is a low-severity allocation of resources without limits or throttling vulnerability in solspace/craft-freeform (composer), affecting versions < 4.1.29. It is fixed in 4.1.30. The application allocates resources such as memory, threads, or file descriptors based on untrusted input without enforcing a cap.
- Which versions of solspace/craft-freeform are affected by GHSA-58Q2-9X27-H2JM? solspace/craft-freeform (composer) versions < 4.1.29 is affected.
- Is there a fix for GHSA-58Q2-9X27-H2JM? Yes. GHSA-58Q2-9X27-H2JM is fixed in 4.1.30. Upgrade to this version or later.
- Is GHSA-58Q2-9X27-H2JM exploitable, and should I be worried? Whether GHSA-58Q2-9X27-H2JM 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 GHSA-58Q2-9X27-H2JM 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 GHSA-58Q2-9X27-H2JM? Upgrade
solspace/craft-freeformto 4.1.30 or later.