Vulnerabilities in pkg:pypi/reportlab

PACKAGE
Advisory Identifier: GHSA-9q9m-c65c-37pq
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Advisory Summary

CVE-2023-33733 is a HIGH (CVSS 7.8) remote code execution vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Reportlab libraries in the PyPI ecosystem. The issue involves reportlab vulnerable to remote code execution. Remediation is available by upgrading affected packages to version 3.6.13.

4 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:pypi/reportlab

4 Known Advisory Record(s)

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

Advisory ID CVE / NVD Severity Summary
GHSA-9q9m-c65c-37pq CVE-2023-33733 HIGH Reportlab vulnerable to remote code execution
GHSA-qpg2-vx7j-3869 CVE-2019-17626 CRITICAL XML Injection in ReportLab
GHSA-mpvw-25mg-59vx CVE-2020-28463 HIGH Server-side Request Forgery (SSRF) via img tags in reportlab
GHSA-pj98-2xf6-cff5 CVE-2019-19450 CRITICAL ReportLab vulnerable to remote code execution via paraparser

CVE-2023-33733 at a Glance

CVE Identifier CVE-2023-33733
GHSA Identifier GHSA-9q9m-c65c-37pq
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Reportlab
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

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

How to Fix CVE-2023-33733

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

reportlab fixed: 3.6.13 
pip install reportlab>=3.6.13
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 reportlab

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-33733, inspect your installed packages using pip:

pip show reportlab

Analyze the terminal output to locate any version of Reportlab in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.6.13), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Reportlab, 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

Reportlab up to and including v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file.

CVE-2023-33733 Affected Reportlab Versions

1 component(s)
Fixed Versions:
3.6.13
Product / Package Ecosystem Affected Versions Fixed Version
reportlab
pypi/reportlab
PyPI
< 3.6.13
3.6.13

References

NVD — CVE-2023-33733 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-33733
Reportlab Source Repository REPOSITORY
https://github.com/c53elyas/CVE-2023-33733
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2024/10/msg00008.html
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36WOY22ECJCPOXHVTNCHEWOQLL7JSWP4
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ALE727IRACYBTTOFIFG57RS4OA2SHIJ
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36WOY22ECJCPOXHVTNCHEWOQLL7JSWP4
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6ALE727IRACYBTTOFIFG57RS4OA2SHIJ

Frequently Asked Questions

What is CVE-2023-33733?
CVE-2023-33733 is a security vulnerability in Reportlab involving Reportlab vulnerable to remote code execution under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Reportlab versions are affected?
Affected versions include releases prior to 3.6.13 across affected packages: reportlab.
What version fixes CVE-2023-33733?
Upgrading to 3.6.13 (or the latest patched release for your respective branch) resolves the vulnerability.
Is reportlab affected?
Yes, reportlab is affected in releases prior to 3.6.13. Upgrade your dependency to 3.6.13 or later.
What is the CVSS score of CVE-2023-33733?
CVE-2023-33733 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-33733?
CVE-2023-33733 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check PyPI dependencies for CVE-2023-33733?
Run the dependency tree command: 'pip show reportlab'. 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-9q9m-c65c-37pq",
  "modified" : "2025-01-08T21:51:23Z",
  "published" : "2023-06-05T18:30:27Z",
  "aliases" : [ "CVE-2023-33733" ],
  "summary" : "Reportlab vulnerable to remote code execution",
  "details" : "Reportlab up to and including v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
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      "ecosystem" : "PyPI",
      "name" : "reportlab"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.6.13"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.6.12"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-33733"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2024/10/msg00008.html"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36WOY22ECJCPOXHVTNCHEWOQLL7JSWP4"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ALE727IRACYBTTOFIFG57RS4OA2SHIJ"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36WOY22ECJCPOXHVTNCHEWOQLL7JSWP4"
  }, {
    "type" : "WEB",
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  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-94" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-28T17:16:39Z",
    "nvd_published_at" : "2023-06-05T16:15:09Z"
  }
}