Answer in brief
CVE-2026-19286 records a Critical severity (CVSS 9.8) vulnerability in Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement. The current sources do not mark it as known exploited. The current feed maps IBM/Langflow OSS (generic), IBM/Langflow OSS (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 9.8. 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 IBM/Langflow OSS (generic), IBM/Langflow OSS (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| IBM/Langflow OSSgeneric | >=1.0.0 <=1.11.1 | Not reported |
| IBM/Langflow OSSgeneric | 1.0.0 | Not reported |
Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 28, 2026
IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary code due to improper enforcement of security restrictions on the A2A public endpoint.
Quoted source text, attributed separately from HOL analysis.