CVE-2025-59016: Typo3/cms core TYPO3 CMS Exposes Sensitive Information Vulnerability

MODERATE
Advisory Identifier: GHSA-cvm2-5f78-g9m8
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CWE-209
Published
Advisory Summary

CVE-2025-59016 is a MODERATE typo3 cms exposes sensitive information vulnerability (CWE-209: Generation of Error Message Containing Sensitive Information) affecting Typo3/cms core libraries in the Packagist ecosystem. The issue involves typo3 cms exposes sensitive information in an error message. Remediation is available by upgrading affected packages to version 12.4.37, 13.4.18.

CVE-2025-59016 at a Glance

CVE Identifier CVE-2025-59016
GHSA Identifier GHSA-cvm2-5f78-g9m8
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-209: Generation of Error Message Containing Sensitive Information
Affected Product Typo3/cms core
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2025-59016

To remediate this vulnerability, upgrade all affected Typo3/cms core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

typo3/cms-core fixed: 12.4.37 
Upgrade typo3/cms-core to 12.4.37
typo3/cms-core fixed: 12.4.37 
Upgrade typo3/cms-core to 12.4.37
typo3/cms-core fixed: 12.4.37 
Upgrade typo3/cms-core to 12.4.37
typo3/cms-core fixed: 12.4.37 
Upgrade typo3/cms-core to 12.4.37
typo3/cms-core fixed: 13.4.18 
Upgrade typo3/cms-core to 13.4.18
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 typo3/cms-core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-59016, inspect your project dependencies for Typo3/cms core:

inspect dependencies for typo3/cms-core

Analyze the terminal output to locate any version of Typo3/cms core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 12.4.37), 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-209: Generation of Error Message Containing Sensitive Information, where the product generates an error message that includes sensitive information about its environment, users, or associated data. In Typo3/cms core, 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

Error messages containing sensitive information in the File Abstraction Layer in TYPO3 CMS versions 9.0.0-9.5.54, 10.0.0-10.4.53, 11.0.0-11.5.47, 12.0.0-12.4.36, and 13.0.0-13.4.17 allow backend users to disclose full file paths via failed low-level file-system operations.

CVE-2025-59016 Affected Typo3/cms core Versions

5 component(s)
Fixed Versions:
12.4.3713.4.18
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms-core
 Packagist
≥ 9.0.0
< 12.4.37
12.4.37
typo3/cms-core
 Packagist
≥ 10.0.0
< 12.4.37
12.4.37
typo3/cms-core
 Packagist
≥ 11.0.0
< 12.4.37
12.4.37
typo3/cms-core
 Packagist
≥ 12.0.0
< 12.4.37
12.4.37
typo3/cms-core
 Packagist
≥ 13.0.0
< 13.4.18
13.4.18

References

NVD — CVE-2025-59016 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59016
Security Fix Commit FIX COMMIT
https://github.com/TYPO3-CMS/core/commit/e1e4380a2d8e72228c597403f0463c21d6e1b8d9
Typo3/cms core Source Repository REPOSITORY
https://github.com/TYPO3-CMS/core
Typo3/cms core Security Information SECURITY
https://typo3.org/security/advisory/typo3-core-sa-2025-020

Frequently Asked Questions

What is CVE-2025-59016?
CVE-2025-59016 is a security vulnerability in Typo3/cms core involving TYPO3 CMS exposes sensitive information in an error message under CWE-209: Generation of Error Message Containing Sensitive Information.
Which Typo3/cms core versions are affected?
Affected versions include releases prior to 12.4.37, 13.4.18 across affected packages: typo3/cms-core.
What version fixes CVE-2025-59016?
Upgrading to 12.4.37, 13.4.18 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typo3/cms-core affected?
Yes, typo3/cms-core is affected in releases prior to 12.4.37, 13.4.18. Upgrade your dependency to 12.4.37, 13.4.18 or later.
What CWE is associated with CVE-2025-59016?
CVE-2025-59016 is classified under CWE-209: Generation of Error Message Containing Sensitive Information (The product generates an error message that includes sensitive information about its environment, users, or associated data.).
How can I check Packagist dependencies for CVE-2025-59016?
Run the dependency tree command: 'inspect dependencies for typo3/cms-core'. 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-cvm2-5f78-g9m8",
  "modified" : "2025-09-09T20:10:54Z",
  "published" : "2025-09-09T09:31:13Z",
  "aliases" : [ "CVE-2025-59016" ],
  "summary" : "TYPO3 CMS exposes sensitive information in an error message",
  "details" : "Error messages containing sensitive information in the File Abstraction Layer in TYPO3 CMS versions 9.0.0-9.5.54, 10.0.0-10.4.53, 11.0.0-11.5.47, 12.0.0-12.4.36, and 13.0.0-13.4.17 allow backend users to disclose full file paths via failed low-level file-system operations.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "12.4.37"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 9.5.55"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.0.0"
      }, {
        "fixed" : "12.4.37"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 10.4.54"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.0"
      }, {
        "fixed" : "12.4.37"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 11.5.48"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "12.0.0"
      }, {
        "fixed" : "12.4.37"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.0.0"
      }, {
        "fixed" : "13.4.18"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-59016"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3-CMS/core/commit/e1e4380a2d8e72228c597403f0463c21d6e1b8d9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3-CMS/core"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2025-020"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-209" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-09T20:10:54Z",
    "nvd_published_at" : "2025-09-09T09:15:40Z"
  }
}