What is CVE-2025-55526?

CVE-2025-55526 is a critical-severity vulnerability in Microsoft Windows_11, classified under Path Traversal. CVSS score: 9.1/10. Published 2025-08-26.

How severe is CVE-2025-55526?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2025-55526 known to be exploited?

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

Path Traversal in Microsoft Windows_11

CVE-2025-55526

n8n-workflows Main Commit ee25413 allows attackers to execute a directory traversal via the download_workflow function within api_server.py

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.008 (51.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Microsoft Windows_11
N8n Fastapi — versions 0.115.14
N8n Pydantic — versions 2.11.7
N8n Uvicorn — versions 0.35.0
N/a — versions n/a

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Exploit, Issue Tracking)

Frequently asked questions

What is CVE-2025-55526?: CVE-2025-55526 is a critical-severity vulnerability in Microsoft Windows_11, classified under Path Traversal. CVSS score: 9.1/10. Published 2025-08-26.
How severe is CVE-2025-55526?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2025-55526 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.