What is CVE-2023-3398?

CVE-2023-3398 is a high-severity vulnerability in Diagrams Drawio, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-06-26.

How severe is CVE-2023-3398?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-3398 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Diagrams Drawio

CVE-2023-3398

Denial of Service in GitHub repository jgraph/drawio prior to 18.1.3.

Vulnerability class: DoS (Denial of Service)

Published 2023-06-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.4th percentile), scored 2026-09-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Diagrams Drawio
Jgraph Jgraph/drawio — versions unspecified

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

Public proof-of-concept exploits

References

huntr.dev/bounties/aa087215-80e1-433d-b870-650705630e69 (Exploit, Patch, Third Party Advisory)
github.com/jgraph/drawio/commit/064729fec4262f9373d9fdcafda0be47cd18dd50 (Patch)

Frequently asked questions

What is CVE-2023-3398?: CVE-2023-3398 is a high-severity vulnerability in Diagrams Drawio, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-06-26.
How severe is CVE-2023-3398?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-3398 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.