PatchTheCVECVE-2021-23352: This affects the package madge before 4.0.1
CVE-2021-23352 is a high-severity flaw (CVSS 8.6) affecting madge. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
This affects the package madge before 4.0.1. It is possible to specify a custom Graphviz path via the graphVizPath option parameter which when the .image(), .svg() or .dot() functions are called, is executed by the childprocess.exec function.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.6 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.1% (top 19%) |
| CISA exploited list | No |
| Weakness | CWE-89 |
| Published | 2021-03-09 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-23352?
madge: upgrade to 4.0.1. Exact commands for each OS are on this page.
Is CVE-2021-23352 being exploited?
CVE-2021-23352 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-23352 affect?
CVE-2021-23352 affects madge. Severity is high (CVSS 8.6). This affects the package madge before 4.0.1. It is possible to specify a custom Graphviz path via the graphVizPath option parameter which when the .image(), .svg() or .dot() functions are called, is executed by the childprocess.exec functio
How urgent is CVE-2021-23352?
Priority 60/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action