Answer in brief
CVE-2026-58661 records a Medium severity (CVSS 5.3) vulnerability in n8n - Disk Space Exhaustion via Data-Table File Upload Endpoint. The current sources do not mark it as known exploited. The current feed maps n8n/n8n (generic), n8n/n8n (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n8n/n8n (generic), n8n/n8n (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n8n/n8ngeneric | >=0 <2.28.0 | 2.28.0 |
| n8n/n8ngeneric | >=0 <1.123.58 | 1.123.58 |
Published upstream
Jul 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 10, 2026
n8n before 2.28.0 (and before 1.123.58 on the 1.x branch) contains a disk space exhaustion vulnerability in the data-table file upload endpoint. The per-request quota check does not account for files already written to the shared temporary directory, allowing an authenticated user to repeatedly upload files that accumulate on disk until the periodic cleanup runs, potentially exhausting available disk space on the host.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-58661 records a Medium severity (CVSS 5.3) vulnerability in n8n - Disk Space Exhaustion via Data-Table File Upload Endpoint. The current sources do not mark it as known exploited. The current feed maps n8n/n8n (generic), n8n/n8n (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n8n/n8n (generic), n8n/n8n (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n8n/n8ngeneric | >=0 <2.28.0 | 2.28.0 |
| n8n/n8ngeneric | >=0 <1.123.58 | 1.123.58 |
Published upstream
Jul 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 10, 2026
n8n before 2.28.0 (and before 1.123.58 on the 1.x branch) contains a disk space exhaustion vulnerability in the data-table file upload endpoint. The per-request quota check does not account for files already written to the shared temporary directory, allowing an authenticated user to repeatedly upload files that accumulate on disk until the periodic cleanup runs, potentially exhausting available disk space on the host.
Quoted source text, attributed separately from HOL analysis.