CVE-2026-49970: Laravel-Mediable Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-xv8g-76mx-2rxc
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CVSS 8.8
CWE-22
Published
Advisory Summary

CVE-2026-49970 is a HIGH (CVSS 8.8) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Laravel-Mediable libraries in the Packagist ecosystem. The issue involves path traversal vulnerability in the file::sanitizepath(). Remediation is available by upgrading affected packages to version 7.0.0.

CVE-2026-49970 at a Glance

CVE Identifier CVE-2026-49970
GHSA Identifier GHSA-xv8g-76mx-2rxc
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Laravel-Mediable
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-49970

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

plank/laravel-mediable fixed: 7.0.0 
Upgrade plank/laravel-mediable to 7.0.0
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 plank/laravel-mediable

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-49970, inspect your project dependencies for Laravel-Mediable:

inspect dependencies for plank/laravel-mediable

Analyze the terminal output to locate any version of Laravel-Mediable in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.0.0), 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Laravel-Mediable, 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

Laravel-Mediable before 7.0.0 contains a path traversal vulnerability in the File::sanitizePath() function that allows attackers to write uploaded files to arbitrary locations by controlling the directory argument passed to MediaUploader::toDestination(). Attackers can exploit the permissive character-class regex that allows both dot and slash characters combined with an ineffective trailing trim() call to bypass sanitization and upload files to sensitive locations such as the document root, environment configuration files, or application configuration directories, enabling remote code execution.

CVE-2026-49970 Affected Laravel-Mediable Versions

1 component(s)
Fixed Versions:
7.0.0
Product / Package Ecosystem Affected Versions Fixed Version
plank/laravel-mediable
 Packagist
< 7.0.0
7.0.0

References

NVD — CVE-2026-49970 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49970
Laravel-Mediable Source Repository REPOSITORY
https://github.com/plank/laravel-mediable/pull/391
Security Fix Commit FIX COMMIT
https://github.com/plank/laravel-mediable/commit/6d1e7fb39922fdfb3b2d120e13f4eb2e653ae082
Laravel-Mediable Source Repository REPOSITORY
https://github.com/plank/laravel-mediable
Laravel-Mediable Release RELEASE
https://github.com/plank/laravel-mediable/releases/tag/7.0.0
www.vulncheck.com/advisories/laravel-... WEB
https://www.vulncheck.com/advisories/laravel-mediable-path-traversal-via-file-sanitizepath

Frequently Asked Questions

What is CVE-2026-49970?
CVE-2026-49970 is a security vulnerability in Laravel-Mediable involving path traversal vulnerability in the File::sanitizePath() under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Laravel-Mediable versions are affected?
Affected versions include releases prior to 7.0.0 across affected packages: plank/laravel-mediable.
What version fixes CVE-2026-49970?
Upgrading to 7.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is plank/laravel-mediable affected?
Yes, plank/laravel-mediable is affected in releases prior to 7.0.0. Upgrade your dependency to 7.0.0 or later.
What is the CVSS score of CVE-2026-49970?
CVE-2026-49970 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-49970?
CVE-2026-49970 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Packagist dependencies for CVE-2026-49970?
Run the dependency tree command: 'inspect dependencies for plank/laravel-mediable'. 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-xv8g-76mx-2rxc",
  "modified" : "2026-08-13T18:28:50Z",
  "published" : "2026-07-13T21:31:24Z",
  "aliases" : [ "CVE-2026-49970" ],
  "summary" : "Laravel-Mediable: path traversal vulnerability in the File::sanitizePath()",
  "details" : "Laravel-Mediable before 7.0.0 contains a path traversal vulnerability in the File::sanitizePath() function that allows attackers to write uploaded files to arbitrary locations by controlling the directory argument passed to MediaUploader::toDestination(). Attackers can exploit the permissive character-class regex that allows both dot and slash characters combined with an ineffective trailing trim() call to bypass sanitization and upload files to sensitive locations such as the document root, environment configuration files, or application configuration directories, enabling remote code execution.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "plank/laravel-mediable"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "7.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-49970"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plank/laravel-mediable/pull/391"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plank/laravel-mediable/commit/6d1e7fb39922fdfb3b2d120e13f4eb2e653ae082"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/plank/laravel-mediable"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plank/laravel-mediable/releases/tag/7.0.0"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/laravel-mediable-path-traversal-via-file-sanitizepath"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-13T18:28:50Z",
    "nvd_published_at" : "2026-07-13T19:17:09Z"
  }
}