Answer in brief
CVE-2026-19303 records a High severity (CVSS 8.1) vulnerability in Langflow is vulnerable to arbitrary file write and arbitrary file deletion due to unvalidated paths in file-processing components. 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 8.1. 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 |
| cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| IBM/Langflow OSSgeneric | >=1.0.0 <=1.11.2 | Not reported |
| IBM/Langflow OSSgeneric | 1.0.0 | Not reported |
Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 4, 2026
IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to delete arbitrary local files or directories due to improper limitation of a pathname to a restricted directory.
Quoted source text, attributed separately from HOL analysis.