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Vulnerability record · CVE-2020-28463 · published 18 February 2021

CVE-2020-28463: Reportlab server-side request forgery (ssrf) vulnerability

Reportlab · Reportlab

All versions of package reportlab are vulnerable to Server-side Request Forgery (SSRF) via img tags. In order to reduce risk, use trustedSchemes & trustedHosts (see in Reportlab's documentation) Steps to reproduce by Karan Bamal: 1. Download and install the latest package of reportlab 2. Go to demos -> odyssey -> dodyssey 3. In the text file odyssey.txt that needs to be converted to pdf inject <img src="http://127.0.0.1:5000" valign="top"/> 4. Create a nc listener nc -lp 5000 5. Run python3 dodyssey.py 6. You will get a hit on your nc showing we have successfully proceded to send a server side request 7. dodyssey.py will show error since there is no img file on the url, but we are able to do SSRF

6.5 CVSS 3.1 Medium EPSS 1.5% · top 27.0% CWE-918 · Server-side request forgery (SSRF)
6.5CVSS 3.1 base score, v2 4.0
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
10References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

All versions of package reportlab are vulnerable to Server-side Request Forgery (SSRF) via img tags. In order to reduce risk, use trustedSchemes & trustedHosts (see in Reportlab's documentation) Steps to reproduce by Karan Bamal: 1. Download and install the latest package of reportlab 2. Go to demos -> odyssey -> dodyssey 3. In the text file odyssey.txt that needs to be converted to pdf inject <img src="http://127.0.0.1:5000" valign="top"/> 4. Create a nc listener nc -lp 5000 5. Run python3 dodyssey.py 6. You will get a hit on your nc showing we have successfully proceded to send a server side request 7. dodyssey.py will show error since there is no img file on the url, but we are able to do SSRF

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

Affected products

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

References

LinkTags
https://lists.debian.org/debian-lts-announce/2023/09/msg00037.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HMUJA5GZTPQ5WRYUCCK2GEZ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZQSFCID67K6BTC655EQY6M
https://snyk.io/vuln/SNYK-PYTHON-REPORTLAB-1022145 ExploitRelease NotesThird Party Advisory
https://www.reportlab.com/docs/reportlab-userguide.pdf ProductVendor Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00037.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HMUJA5GZTPQ5WRYUCCK2GEZ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZQSFCID67K6BTC655EQY6M
https://snyk.io/vuln/SNYK-PYTHON-REPORTLAB-1022145 ExploitRelease NotesThird Party Advisory
https://www.reportlab.com/docs/reportlab-userguide.pdf ProductVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-28463), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.