GHSA-58q2-9x27-h2jm: Solspace/craft freeform Denial of Service Vulnerability

LOW
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CWE-770
Published
Advisory Summary

GHSA-58q2-9x27-h2jm is a LOW denial of service vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting Solspace/craft freeform libraries in the Packagist ecosystem. The issue involves solspace/craft-freeform has a dos vulnerability. Remediation is available by upgrading affected packages to version 4.1.30.

GHSA-58q2-9x27-h2jm at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-58q2-9x27-h2jm
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-770: Allocation of Resources Without Limits or Throttling
Affected Product Solspace/craft freeform
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix GHSA-58q2-9x27-h2jm

To remediate this vulnerability, upgrade all affected Solspace/craft freeform dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

solspace/craft-freeform fixed: 4.1.30 
Upgrade solspace/craft-freeform to 4.1.30
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for solspace/craft-freeform

How to Check if You Are Affected

To determine whether your application is affected by GHSA-58q2-9x27-h2jm, inspect your project dependencies for Solspace/craft freeform:

inspect dependencies for solspace/craft-freeform

Analyze the terminal output to locate any version of Solspace/craft freeform in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.30), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. In Solspace/craft freeform, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary 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

GHSA-58q2-9x27-h2jm Affected Solspace/craft freeform Versions

1 component(s)
Fixed Versions:
4.1.30
Product / Package Ecosystem Affected Versions Fixed Version
solspace/craft-freeform
 Packagist
< 4.1.30
4.1.30

References

GitHub Advisory / Wiki ADVISORY
https://github.com/axios/axios/security/advisories/GHSA-4hjh-wcwx-xvwj
GitHub Advisory / Wiki ADVISORY
https://github.com/solspace/craft-freeform/security/advisories/GHSA-58q2-9x27-h2jm
Solspace/craft freeform Source Repository REPOSITORY
https://github.com/axios/axios/pull/7011
Security Fix Commit FIX COMMIT
https://github.com/axios/axios/commit/945435fc51467303768202250debb8d4ae892593
Security Fix Commit FIX COMMIT
https://github.com/solspace/craft-freeform/commit/e7402a1d1ce9f28ecb6ce659885ac66391d3a040
Solspace/craft freeform Release RELEASE
https://github.com/axios/axios/releases/tag/v1.12.0
Solspace/craft freeform Source Repository REPOSITORY
https://github.com/solspace/craft-freeform
Solspace/craft freeform Release RELEASE
https://github.com/solspace/craft-freeform/releases/tag/v4.1.30

Frequently Asked Questions

What is GHSA-58q2-9x27-h2jm?
GHSA-58q2-9x27-h2jm is a security vulnerability in Solspace/craft freeform involving solspace/craft-freeform Has a DoS Vulnerability under CWE-770: Allocation of Resources Without Limits or Throttling.
Which Solspace/craft freeform versions are affected?
Affected versions include releases prior to 4.1.30 across affected packages: solspace/craft-freeform.
What version fixes GHSA-58q2-9x27-h2jm?
Upgrading to 4.1.30 (or the latest patched release for your respective branch) resolves the vulnerability.
Is solspace/craft-freeform affected?
Yes, solspace/craft-freeform is affected in releases prior to 4.1.30. Upgrade your dependency to 4.1.30 or later.
What CWE is associated with GHSA-58q2-9x27-h2jm?
GHSA-58q2-9x27-h2jm is classified under CWE-770: Allocation of Resources Without Limits or Throttling (The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.).
How can I check Packagist dependencies for GHSA-58q2-9x27-h2jm?
Run the dependency tree command: 'inspect dependencies for solspace/craft-freeform'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-58q2-9x27-h2jm",
  "modified" : "2026-01-15T22:31:35Z",
  "published" : "2026-01-15T20:12:25Z",
  "aliases" : [ ],
  "summary" : "solspace/craft-freeform Has a DoS Vulnerability",
  "details" : "### Summary\nFreeform 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).\n\nFreeform version: 4.1.29\nCraft CMS version: 4.16.8\n\n### Impact\nWhen 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'`.\n\nhttps://github.com/axios/axios/security/advisories/GHSA-4hjh-wcwx-xvwj\nhttps://github.com/axios/axios/pull/7011\nhttps://github.com/axios/axios/commit/945435fc51467303768202250debb8d4ae892593\nhttps://github.com/axios/axios/releases/tag/v1.12.0",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "solspace/craft-freeform"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.1.30"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 4.1.29"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/axios/axios/security/advisories/GHSA-4hjh-wcwx-xvwj"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/solspace/craft-freeform/security/advisories/GHSA-58q2-9x27-h2jm"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/axios/axios/pull/7011"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/axios/axios/commit/945435fc51467303768202250debb8d4ae892593"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/solspace/craft-freeform/commit/e7402a1d1ce9f28ecb6ce659885ac66391d3a040"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/axios/axios/releases/tag/v1.12.0"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/solspace/craft-freeform"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/solspace/craft-freeform/releases/tag/v4.1.30"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-770" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-01-15T20:12:25Z",
    "nvd_published_at" : null
  }
}