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Fencer Intel
critical 9.8

CVE-2019-19450 json

ReportLab vulnerable to remote code execution via paraparser

published 3y ago modified 4mo ago also GHSA-pj98-2xf6-cff5 , PYSEC-2026-522 , EUVD-2023-2562

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.0%
EPSS 6.0% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

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.

Patch / fix

  • pypi reportlab 3.5.31
  • reportlab reportlab 3.5.31
  • python-reportlab Debian 14, Debian 13, Debian 12 3.5.31-1

debian advisories DEBIAN-CVE-2019-19450

  • python-reportlab RHEL 8 3.4.0-8.el8_8.1
  • python3-reportlab RHEL 8 3.4.0-8.el8_8.1
  • python-reportlab RHEL 7 2.5-11.el7_9
  • python-reportlab RHEL 8.6 EUS 3.4.0-8.el8_6.1
  • python3-reportlab RHEL 8.6 EUS 3.4.0-8.el8_6.1
  • python-reportlab RHEL 8.4 TUS, RHEL 8.4 E4S, RHEL 8.4 AUS 3.4.0-8.el8_4.1
  • python3-reportlab RHEL 8.4 TUS, RHEL 8.4 E4S, RHEL 8.4 AUS 3.4.0-8.el8_4.1
  • python-reportlab RHEL 8.2 TUS, RHEL 8.2 E4S, RHEL 8.2 AUS 3.4.0-8.el8_2.1

red hat advisories RHSA-2023:5786RHSA-2023:5787RHSA-2023:5788RHSA-2023:5789RHSA-2023:5790RHSA-2023:5616

  • python-reportlab SLE Workstation Extension 12 SP5 2.7-3.16.1
  • python-reportlab SLE Module for Package Hub 15 SP5, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.5 +1 more 3.4.0-150000.3.12.1

suse advisories SUSE-SU-2023:4048-1SUSE-SU-2023:3972-1

  • python3-reportlab AlmaLinux 8 3.4.0-8.el8_8.1.alma.1

almalinux advisories ALSA-2023:5790

Is CVE-2019-19450 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-19450 updated cvss 9.8

python-reportlab: code injection in paraparser.py allows code execution

  • Red Hat Enterprise Linux 6 python-reportlab
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) python-reportlab 3.4.0-8.el8_8.1, python3-reportlab 3.4.0-8.el8_8.1
    fixed: vendor fix RHSA-2023:5790
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) python-reportlab 3.4.0-8.el8_2.1, python3-reportlab 3.4.0-8.el8_2.1
    fixed: vendor fix RHSA-2023:5788
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) python-reportlab 3.4.0-8.el8_4.1, python3-reportlab 3.4.0-8.el8_4.1
    fixed: vendor fix RHSA-2023:5787
  • Red Hat Enterprise Linux AppStream E4S (v. 8.1) python-reportlab 3.4.0-6.el8_1.5, python3-reportlab 3.4.0-6.el8_1.5
    fixed: vendor fix RHSA-2023:5789
  • Red Hat Enterprise Linux AppStream E4S (v. 8.2) python-reportlab 3.4.0-8.el8_2.1, python3-reportlab 3.4.0-8.el8_2.1
    fixed: vendor fix RHSA-2023:5788
  • Red Hat Enterprise Linux AppStream E4S (v.8.4) python-reportlab 3.4.0-8.el8_4.1, python3-reportlab 3.4.0-8.el8_4.1
    fixed: vendor fix RHSA-2023:5787
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) python-reportlab 3.4.0-8.el8_6.1, python3-reportlab 3.4.0-8.el8_6.1
    fixed: vendor fix RHSA-2023:5786
show 3 more
  • Red Hat Enterprise Linux AppStream TUS (v. 8.2) python-reportlab 3.4.0-8.el8_2.1, python3-reportlab 3.4.0-8.el8_2.1
    fixed: vendor fix RHSA-2023:5788
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) python-reportlab 3.4.0-8.el8_4.1, python3-reportlab 3.4.0-8.el8_4.1
    fixed: vendor fix RHSA-2023:5787
  • Red Hat Enterprise Linux Client (v. 7) python-reportlab 2.5-11.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) python-reportlab-docs 2.5-11.el7_9, python-reportlab-debuginfo 2.5-11.el7_9 Red Hat Enterprise Linux Server (v. 7) python-reportlab 2.5-11.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) python-reportlab-docs 2.5-11.el7_9, python-reportlab-debuginfo 2.5-11.el7_9 Red Hat Enterprise Linux Workstation (v. 7) python-reportlab 2.5-11.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) python-reportlab-docs 2.5-11.el7_9, python-reportlab-debuginfo 2.5-11.el7_9
    fixed: vendor fix RHSA-2023:5616

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.98% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi reportlab
<3.5.31
3.5.31

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.