VDB
CVE-2026-21858
CVE-2026-21858
PUBLISHED
CVSS 10 CRITICAL
n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling
EPSS 5.90% · 90.8th percentile
Risk Scores
CVSS 3.1
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS Score
5.90%
90.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n8n-io | n8n | >= 1.65.0, < 1.121.0 |
| n8n | n8n | 1.65.0 |
| npm | n8n | 1.65.0 |
Exploit Intelligence
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc-repo)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc-repo)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc-repo)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc-repo)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc-repo)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc-repo)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc-repo)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc-repo)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc)
- Proof of Concept: CVE-2026-21858 is vulnerability on n8n where unauthenticated remote attackers can access sensitive files. (github-poc)
…and 466 more exploits
Timeline
- Jan 7, 2026 CVE Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published
- Jan 7, 2026 PoC Published