paraparser in ReportLab before 3.5.31 allows remote code execution because start_unichar…
Priority MEDIUM 51CWE-91Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 15 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.
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.
Why it matters now
EPSS 0.05978 93rd percentileScored 2026-11-07
Fix Partial reportlab (PyPI): 3.5.31Red Hat: 6 advisoriesRed Hat: 15 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | reportlab (PyPI) | before 3.5.31 | 3.5.31 | Patch available | GHSA-pj98-2xf6-cff5 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- reportlab (PyPI) Vendor— Affected before 3.5.31 Fixed in 3.5.31 Patch available GHSA-pj98-2xf6-cff5
Remediation
- Fix · GHSA-pj98-2xf6-cff5 reportlab (PyPI) Fixed in 3.5.31 Advisory →
Red Hat 6 advisories
- RHSA-2023:5790 Released 2023-10-17 · Red Hat rating Importantpython-reportlab security update
- 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
- RHSA-2023:5786 Released 2023-10-17 · Red Hat rating Importantpython-reportlab security update
- 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
- RHSA-2023:5787 Released 2023-10-17 · Red Hat rating Importantpython-reportlab security update
- 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
- 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
- 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
Show 3 more Red Hat advisories
- RHSA-2023:5788 Released 2023-10-17 · Red Hat rating Importantpython-reportlab security update
- 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
- 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
- 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
- RHSA-2023:5789 Released 2023-10-17 · Red Hat rating Importantpython-reportlab security update
- 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
- RHSA-2023:5616 Released 2023-10-10 · Red Hat rating Importantpython-reportlab security update
- 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
- 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
- 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
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2023:5790 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2023:5788 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2023:5787 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.1) | Fixed | RHSA-2023:5789 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.2) | Fixed | RHSA-2023:5788 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2023:5787 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2023:5786 |
| Red Hat Enterprise Linux AppStream TUS (v. 8.2) | Fixed | RHSA-2023:5788 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2023:5787 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2023:5616 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2023:5616 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2023:5616 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2023:5616 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2023:5616 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2023:5616 |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-19450
- 2026-10-03 Alias added: GHSA-pj98-2xf6-cff5
References
Advisory 5
Other 5
- https://github.com/MrBitBucket/reportlab-mirror/blob/master/CHANGES.md
- https://github.com/MrBitBucket/reportlab-mirror/blob/master/CHANGES.md#release-353115102019
- https://hg.reportlab.com/hg-public/reportlab
- 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
Sources
- CVE-2019-19450 · CVE Program
- CVE-2019-19450 · NVD
- FIRST EPSS
- GHSA-pj98-2xf6-cff5 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-19450 · Red Hat security data · CC BY 4.0
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