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CVE-2019-19450 — Vulnerability in reportlab — CVE Details

CRITICAL

ReportLab vulnerable to remote code execution via paraparser

Published June 29, 2026Updated July 1, 2026Source: osv

Summary

paraparser in ReportLab before 3.5.31 allows remote code execution because start_unichar in paraparser.py evaluates untrusted user input in a unichar element in a crafted XML document with '<unichar code="' followed by arbitrary Python code, a similar issue to CVE-2019-17626.

Advisory Timeline

  • First published June 29, 2026 (105 days ago).
  • Last revised July 1, 2026 — 2 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update reportlab to 3.5.31 or later
pip install "reportlab>=3.5.31"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
reportlab
pypi
2.0, 2.3, 2.4, 2.5 (+29 more)3.5.31

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2019-19450?
ReportLab vulnerable to remote code execution via paraparser This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2019-19450?
CVE-2019-19450 affects reportlab. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2019-19450 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

PYSEC-2026-522
GHSA-pj98-2xf6-cff5

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