Answer in brief
CVE-2026-56359 records a Medium severity (CVSS 5.4) vulnerability in n8n - Cross-Site Scripting in Credential Management OAuth2 Authorization URL. 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 5.4. 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 <2.8.0 | 2.8.0 |
| n8n/n8ngeneric | >=0 <2.6.4 | 2.6.4 |
Published upstream
Jul 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 8, 2026
n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth authorization button, executing arbitrary scripts in their browser session with the victim's privileges.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-56359 records a Medium severity (CVSS 5.4) vulnerability in n8n - Cross-Site Scripting in Credential Management OAuth2 Authorization URL. 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 5.4. 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 <2.8.0 | 2.8.0 |
| n8n/n8ngeneric | >=0 <2.6.4 | 2.6.4 |
Published upstream
Jul 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 8, 2026
n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth authorization button, executing arbitrary scripts in their browser session with the victim's privileges.
Quoted source text, attributed separately from HOL analysis.