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Vulnerability record · CVE-2019-19450 · published 20 September 2023

CVE-2019-19450: Reportlab xml injection vulnerability

Reportlab · Reportlab

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.

9.8 CVSS 3.1 Critical EPSS 6.0% · top 7.0% CWE-91 · XML injection
9.8CVSS 3.1 base score
6.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/MrBitBucket/reportlab-mirror/blob/master/CHANGES.md Release Notes
https://lists.debian.org/debian-lts-announce/2023/09/msg00037.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHMCB2GJQKFMGVO5RWHN222
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HADPTB3SBU7IVRMDK7OL6WS
https://pastebin.com/5MicRrr4 Third Party Advisory
https://github.com/MrBitBucket/reportlab-mirror/blob/master/CHANGES.md Release Notes
https://lists.debian.org/debian-lts-announce/2023/09/msg00037.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHMCB2GJQKFMGVO5RWHN222
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HADPTB3SBU7IVRMDK7OL6WS
https://lists.fedoraproject.org/archives/list/[email protected]/message/CHMCB2GJQKFMGVO5RWHN222NQ
https://lists.fedoraproject.org/archives/list/[email protected]/message/HADPTB3SBU7IVRMDK7OL6WSQR
https://pastebin.com/5MicRrr4 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-19450), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.