Vulnerabilities in pkg:pypi/tablib

PACKAGE
Advisory Identifier: GHSA-gqgw-jghv-mxwx
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Advisory Summary

CVE-2026-9318 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting tablib libraries in the PyPI ecosystem. The issue involves stored xss in the html export via unescaped dataset title. Remediation is available by upgrading affected packages to version 3.10.0.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:pypi/tablib

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:pypi/tablib. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-gqgw-jghv-mxwx CVE-2026-9318 MODERATE tablib: Stored XSS in the HTML export via unescaped dataset title
GHSA-gcr6-rf47-jrgf CVE-2017-2810 CRITICAL Loaded Databook of Tablib prone to python insertion resulting in command execution

CVE-2026-9318 at a Glance

CVE Identifier CVE-2026-9318
GHSA Identifier GHSA-gqgw-jghv-mxwx
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product tablib
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.4

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:R/S:C/C:L/I:L/A:N).

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

How to Fix CVE-2026-9318

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

tablib fixed: 3.10.0 
pip install tablib>=3.10.0
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 tablib

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-9318, inspect your installed packages using pip:

pip show tablib

Analyze the terminal output to locate any version of tablib in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.10.0), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In tablib, 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

tablib prior to 3.10.0 contains a stored cross-site scripting vulnerability in the HTML export functionality that allows attackers to execute arbitrary JavaScript by embedding malicious payloads in dataset titles, which are interpolated unsanitized into HTML output via the export_book method in the _html.py format handler. Attackers can rename worksheet sheets in imported files such as XLSX, ODS, XLS, or YAML with script payloads that are assigned to the Dataset title attribute and rendered unescaped inside an HTML h3 tag, leading to session hijacking, unauthorized administrative actions, and sensitive data exposure when the output is rendered in a browser.

CVE-2026-9318 Affected tablib Versions

1 component(s)
Fixed Versions:
3.10.0
Product / Package Ecosystem Affected Versions Fixed Version
tablib
pypi/tablib
PyPI
< 3.10.0
3.10.0

References

NVD — CVE-2026-9318 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9318
tablib Source Repository REPOSITORY
https://github.com/jazzband/tablib/pull/668
tablib Source Repository REPOSITORY
https://github.com/jazzband/tablib
tablib Release RELEASE
https://github.com/jazzband/tablib/releases/tag/v3.10.0
www.vulncheck.com/advisories/tablib-v... WEB
https://www.vulncheck.com/advisories/tablib-versions-prior-to-stored-xss-via-html-export-dataset-title

Frequently Asked Questions

What is CVE-2026-9318?
CVE-2026-9318 is a security vulnerability in tablib involving Stored XSS in the HTML export via unescaped dataset title under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which tablib versions are affected?
Affected versions include releases prior to 3.10.0 across affected packages: tablib.
What version fixes CVE-2026-9318?
Upgrading to 3.10.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is tablib affected?
Yes, tablib is affected in releases prior to 3.10.0. Upgrade your dependency to 3.10.0 or later.
What is the CVSS score of CVE-2026-9318?
CVE-2026-9318 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2026-9318?
CVE-2026-9318 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check PyPI dependencies for CVE-2026-9318?
Run the dependency tree command: 'pip show tablib'. 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-gqgw-jghv-mxwx",
  "modified" : "2026-08-12T19:32:12Z",
  "published" : "2026-08-12T03:31:18Z",
  "aliases" : [ "CVE-2026-9318" ],
  "summary" : "tablib: Stored XSS in the HTML export via unescaped dataset title",
  "details" : "tablib prior to 3.10.0 contains a stored cross-site scripting vulnerability in the HTML export functionality that allows attackers to execute arbitrary JavaScript by embedding malicious payloads in dataset titles, which are interpolated unsanitized into HTML output via the export_book method in the _html.py format handler. Attackers can rename worksheet sheets in imported files such as XLSX, ODS, XLS, or YAML with script payloads that are assigned to the Dataset title attribute and rendered unescaped inside an HTML h3 tag, leading to session hijacking, unauthorized administrative actions, and sensitive data exposure when the output is rendered in a browser.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "tablib"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.10.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-9318"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jazzband/tablib/pull/668"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jazzband/tablib"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jazzband/tablib/releases/tag/v3.10.0"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/tablib-versions-prior-to-stored-xss-via-html-export-dataset-title"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-12T19:32:12Z",
    "nvd_published_at" : "2026-08-12T03:16:43Z"
  }
}