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CVE-2026-7873

CriticalPublished

Code Injection Vulnerability in Code Validation Endpoint

Published: Jun 30, 2026
Updated: Jul 1, 2026
Assigning CNA: ibm
Evidence observed: Sep 5, 2026

Primary CVSS

9.9/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS probability estimate

0.5%

Low · next 30 days

Percentile: 43.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated attackers to execute arbitrary OS commands and read sensitive files including credentials, enabling complete system compromise and lateral movement.

Sources

POC-CVE-2026-7873PoC
Proof-of-concept exploit for CVE-2026-7873 in Langflow, allowing authenticated remote code execution via a crafted Bash command.

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