What’s Vulnerable › Vulnerabilities

CVE-2019-19450

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-20 · updated 2026-06-17
• Weakness: CWE-91

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.

Affected products

• Debian Linux: 10.0
• Reportlab: before 3.5.31 — fixed in 3.5.31

How to fix

Upgrade to a fixed version: Reportlab 3.5.31. Check the vendor advisory for mitigations.

References

• https://github.com/MrBitBucket/reportlab-mirror/blob/master/CHANGES.md
• https://lists.debian.org/debian-lts-announce/2023/09/msg00037.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHMCB2GJQKFMGVO5RWHN222NQL5XYPHZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HADPTB3SBU7IVRMDK7OL6WSQRU5AFWDZ/
• https://pastebin.com/5MicRrr4
• https://github.com/MrBitBucket/reportlab-mirror/blob/master/CHANGES.md
• https://lists.debian.org/debian-lts-announce/2023/09/msg00037.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHMCB2GJQKFMGVO5RWHN222NQL5XYPHZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HADPTB3SBU7IVRMDK7OL6WSQRU5AFWDZ/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHMCB2GJQKFMGVO5RWHN222NQL5XYPHZ/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HADPTB3SBU7IVRMDK7OL6WSQRU5AFWDZ/
• https://pastebin.com/5MicRrr4

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