Prototype Pollution in Tbo47 Dagre-D3-Es
CVE-2025-57347
A vulnerability exists in the 'dagre-d3-es' Node.js package version 7.0.9, specifically within the 'bk' module's addConflict function, which fails to properly sanitize user-supplied input during property assignment operations. This flaw allows attackers to exploit prototype pollution vulnerabilities by injecting malicious input values (e.g., "__proto__"), enabling unauthorized modification of the JavaScript Object prototype chain. Successful exploitation could lead to denial of service conditions, unexpected application behavior, or potential execution of arbitrary code in contexts where polluted properties are later accessed or executed. The issue affects versions prior to 7.0.11 and remains unpatched at the time of disclosure.
Vulnerability class: Prototype Pollution
EPSS: 0.005 (40.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Tbo47 Dagre-d3-es — versions 7.0.9
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Issue Tracking)
- cve@mitre.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-57347?
- CVE-2025-57347 is a critical-severity vulnerability in Tbo47 Dagre-D3-Es, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2025-09-24.
- How severe is CVE-2025-57347?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-57347 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.