CVE-2026-48544: Taipy Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-28gh-q3gw-pvx8
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CVSS 7.5
CWE-22
Published
Advisory Summary

CVE-2026-48544 is a HIGH (CVSS 7.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Taipy libraries in the PyPI ecosystem. The issue involves taipy contains a path traversal vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2026-48544 at a Glance

CVE Identifier CVE-2026-48544
GHSA Identifier GHSA-28gh-q3gw-pvx8
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 Taipy
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-2026-48544

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

taipy fixed: Latest secure release 
pip install taipy>=Latest secure release
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 taipy

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-48544, inspect your installed packages using pip:

pip show taipy

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

Note: The pip show taipy 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 Taipy, 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

Taipy 4.1.1, fixed in commit 129fd40, contains a path traversal vulnerability in the ElementLibrary.get_resource() method in taipy/gui/extension/library.py that allows unauthenticated attackers to escape the intended module directory by exploiting an incomplete path containment check using str.startswith() without a trailing path separator. Attackers can send crafted GET requests with path traversal segments targeting a prefix-matching sibling directory on disk, bypassing the directory containment check because Flask's path converter and Werkzeug's WSGI layer preserve the traversal segments while the resolved path still satisfies the flawed startswith comparison, enabling unauthorized file access outside the intended library directory.

CVE-2026-48544 Affected Taipy Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
taipy
pypi/taipy
PyPI
≤ 4.1.1

References

NVD — CVE-2026-48544 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48544
Taipy Source Repository REPOSITORY
https://github.com/Avaiga/taipy/issues/2868
Taipy Source Repository REPOSITORY
https://github.com/Avaiga/taipy/pull/2871
Security Fix Commit FIX COMMIT
https://github.com/Avaiga/taipy/commit/129fd407ffca49ee4ab853772c88d0c873e038dd
Taipy Source Repository REPOSITORY
https://github.com/Avaiga/taipy
www.vulncheck.com/advisories/taipy-pa... WEB
https://www.vulncheck.com/advisories/taipy-path-traversal-via-elementlibrary-get-resource

Frequently Asked Questions

What is CVE-2026-48544?
CVE-2026-48544 is a security vulnerability in Taipy involving Taipy contains a path traversal vulnerability under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Taipy versions are affected?
Affected versions include releases prior to current release patches across affected packages: taipy.
What version fixes CVE-2026-48544?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is taipy affected?
Yes, taipy is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-48544?
CVE-2026-48544 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-2026-48544?
CVE-2026-48544 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-2026-48544?
Run the dependency tree command: 'pip show taipy'. 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-28gh-q3gw-pvx8",
  "modified" : "2026-07-01T19:29:30Z",
  "published" : "2026-05-27T15:33:26Z",
  "aliases" : [ "CVE-2026-48544" ],
  "summary" : "Taipy contains a path traversal vulnerability",
  "details" : "Taipy 4.1.1, fixed in commit 129fd40, contains a path traversal vulnerability in the ElementLibrary.get_resource() method in taipy/gui/extension/library.py that allows unauthenticated attackers to escape the intended module directory by exploiting an incomplete path containment check using str.startswith() without a trailing path separator. Attackers can send crafted GET requests with path traversal segments targeting a prefix-matching sibling directory on disk, bypassing the directory containment check because Flask's path converter and Werkzeug's WSGI layer preserve the traversal segments while the resolved path still satisfies the flawed startswith comparison, enabling unauthorized file access outside the intended library 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" : "taipy"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "4.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-48544"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Avaiga/taipy/issues/2868"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Avaiga/taipy/pull/2871"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Avaiga/taipy/commit/129fd407ffca49ee4ab853772c88d0c873e038dd"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Avaiga/taipy"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/taipy-path-traversal-via-elementlibrary-get-resource"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-01T19:29:30Z",
    "nvd_published_at" : "2026-05-27T15:16:30Z"
  }
}