CVE-2026-49119: Gradio Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-j36p-7w88-g82j
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CVSS 7.5
CWE-22
Published
Advisory Summary

CVE-2026-49119 is a HIGH (CVSS 7.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Gradio libraries in the PyPI ecosystem. The issue involves gradio fileexplorer preprocess path traversal allows files outside root_dir to reach callbacks. Remediation is available by upgrading affected packages to version 6.16.0.

CVE-2026-49119 at a Glance

CVE Identifier CVE-2026-49119
GHSA Identifier GHSA-j36p-7w88-g82j
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Gradio
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

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

How to Fix CVE-2026-49119

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

gradio fixed: 6.16.0 
pip install gradio>=6.16.0
Verify Direct and Transitive Dependencies

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

pip show gradio

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-49119, inspect your installed packages using pip:

pip show gradio

Analyze the terminal output to locate any version of Gradio in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.16.0), your application is affected.

Note: The pip show gradio command checks currently installed packages in your active Python environment.

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 Gradio, 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

Gradio before 6.16.0 contain a path traversal vulnerability in the FileExplorer component's preprocess() method that allows unauthenticated attackers to escape the configured root directory by supplying path segments containing directory traversal sequences or absolute paths. Attackers can provide crafted path segments that cause os.path.join to discard the root_dir prefix entirely, resulting in arbitrary file read or exposure of sensitive files outside the intended directory.

CVE-2026-49119 Affected Gradio Versions

1 component(s)
Fixed Versions:
6.16.0
Product / Package Ecosystem Affected Versions Fixed Version
gradio
pypi/gradio
PyPI
< 6.16.0
6.16.0

References

NVD — CVE-2026-49119 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49119
Gradio Source Repository REPOSITORY
https://github.com/gradio-app/gradio/pull/13437
Security Fix Commit FIX COMMIT
https://github.com/gradio-app/gradio/commit/97d541f3d5fd05b2587a69ecc94b68fe5d2d7004
Gradio Source Repository REPOSITORY
https://github.com/gradio-app/gradio
Gradio Release RELEASE
https://github.com/gradio-app/gradio/releases/tag/gradio%406.16.0
Gradio Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/gradio/PYSEC-2026-2179.yaml
www.vulncheck.com/advisories/gradio-p... WEB
https://www.vulncheck.com/advisories/gradio-path-traversal-via-fileexplorer-preprocess

Frequently Asked Questions

What is CVE-2026-49119?
CVE-2026-49119 is a security vulnerability in Gradio involving Gradio FileExplorer preprocess path traversal allows files outside root_dir to reach callbacks under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Gradio versions are affected?
Affected versions include releases prior to 6.16.0 across affected packages: gradio.
What version fixes CVE-2026-49119?
Upgrading to 6.16.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is gradio affected?
Yes, gradio is affected in releases prior to 6.16.0. Upgrade your dependency to 6.16.0 or later.
What is the CVSS score of CVE-2026-49119?
CVE-2026-49119 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-49119?
CVE-2026-49119 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 PyPI dependencies for CVE-2026-49119?
Run the dependency tree command: 'pip show gradio'. 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-j36p-7w88-g82j",
  "modified" : "2026-10-02T18:29:47Z",
  "published" : "2026-07-01T21:36:18Z",
  "aliases" : [ "CVE-2026-49119" ],
  "summary" : " Gradio FileExplorer preprocess path traversal allows files outside root_dir to reach callbacks",
  "details" : "Gradio before 6.16.0 contain a path traversal vulnerability in the FileExplorer component's preprocess() method that allows unauthenticated attackers to escape the configured root directory by supplying path segments containing directory traversal sequences or absolute paths. Attackers can provide crafted path segments that cause os.path.join to discard the root_dir prefix entirely, resulting in arbitrary file read or exposure of sensitive files outside the intended directory.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "gradio"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.16.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-49119"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gradio-app/gradio/pull/13437"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gradio-app/gradio/commit/97d541f3d5fd05b2587a69ecc94b68fe5d2d7004"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gradio-app/gradio"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gradio-app/gradio/releases/tag/gradio%406.16.0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/gradio/PYSEC-2026-2179.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/gradio-path-traversal-via-fileexplorer-preprocess"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-02T18:29:47Z",
    "nvd_published_at" : "2026-07-01T19:16:52Z"
  }
}