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Vulnerabilities

Vulnerability · CVE-2026-7873

Langflow Langflow Improper Control of Generation of Code ('Code Injection')

Published Jun 30, 2026 · catalog updated Oct 21, 2026 · Langflow Langflow

Patch now

CVE-2026-7873 is in the CISA known-exploited catalog. Confirm Langflow Langflow against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Critical9.9
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
1.07%
Remediation
Remediation guidance
Affected products
cpe langflow/langflow · vendor Langflow Langflow

This release adds multiple new modules, and 6 of those modules point at a single target: Langflow , the open-source LLM workflow builder. Together they cover an authentication bypass (CVE-2026-93680), 3 unauthenticated remote code execution paths (CVE-2026-0768, CVE-2026-0769, and CVE-2026-10134), and 2 authenticated code execution flaws (CVE-2026-7873 and CVE-2026-93674), spanning Langflow releases from 1.0.0 through 1.11.4. Thanks to the work of rmhowe425 , with research credit to Peter Girnus and n0k0. Beyond Langflow, open source contributor kmkz contributed a pre-auth RCE chain against Op

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe langflow/langflow>= 1.0.0, <= 1.10.0
  • vendor Langflow Langflowversion unspecified

How to fix CVE-2026-7873

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2026-7873 is in the CISA known-exploited catalog. Confirm Langflow Langflow against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with >= 1.0.0, <= 1.10.0. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-94: Code Injection. EPSS 1.07%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 21, 2026 · VulnCheck KEV

    Detected

    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. VulnCheck canary evidence.

  2. Oct 21, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2026-7873

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-7873

    30-day exploitation probability 1.07%

    first.org
  • Metasploit ModulesPublic exploit moduleexploit_multi/http/langflow_auth_rce_cve_2026_7873

    Public module reference (excellent). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDVulnerability recordCVE-2026-7873

    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.

    nvd.nist.gov
  • Rapid7 Vulnerability DatabaseResearchCVE-2026-7873

    This release adds multiple new modules, and 6 of those modules point at a single target: Langflow , the open-source LLM workflow builder. Together they cover an authentication bypass (CVE-2026-93680), 3 unauthenticated remote code execution paths (CVE-2026-0768, CVE-2026-0769, and CVE-2026-10134), and 2 authenticated code execution flaws (CVE-2026-7873 and CVE-2026-93674), spanning Langflow releas

    rapid7.com
  • VulnCheck KEVConfirmed exploitationCVE-2026-7873

    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.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.