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Response snapshot Oct 27, 2026, 03:17 UTC

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VulnerabilityCVE-2026-7873

Langflow: Code Injection Vulnerability in Code Validation Endpoint

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.

At a glance

Exploited
Not known
Severity
9.9 Critical (CVSS 3.1)
Chance of exploitation
1.6% in the next 30 days
Sources
1 source

What to do

GitHub lists first patched versions: langflow: 1.10.1.rc0. Confirm the affected range and upgrade guidance in the exact advisory.

Read GitHub-reviewed advisory GHSA-v798-mcc6-2m3m (opens a new tab)

What happened

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.

Affected package ranges reported by GitHub: langflow: >= 1.0.0, < 1.10.1.rc0

Scores and how they were measured

CVSS base severity

9.9

Version 3.1As of

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

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

1.6%

Scored Percentile 74.9%

Model and measurement source (opens a new tab)

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Related technology

Sources

  1. Primary source

    GitHub-reviewed advisory GHSA-v798-mcc6-2m3m (opens a new tab)

    The public advisory supplies the description, affected package/version ranges, and any listed CVSS metric. GitHub review is not local review.

    Published Checked

  2. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-v798-mcc6-2m3m, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  3. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-v798-mcc6-2m3m, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  4. Primary source

    FIRST measured EPSS score (opens a new tab)

    Measured EPSS probability and percentile for CVE-2026-7873, scored 2026-10-26. This is a model estimate, not proof of exposure.

    Published Checked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, October 23). Langflow: Code Injection Vulnerability in Code Validation Endpoint (CVE-2026-7873). https://kevwire.com/record/CVE-2026-7873

MLA

"Langflow: Code Injection Vulnerability in Code Validation Endpoint (CVE-2026-7873)." KEVWire, 23 Oct. 2026, kevwire.com/record/CVE-2026-7873.

Chicago

KEVWire. "Langflow: Code Injection Vulnerability in Code Validation Endpoint (CVE-2026-7873)." Last modified October 23, 2026. https://kevwire.com/record/CVE-2026-7873.

Evidence summary (plain text)

Langflow: Code Injection Vulnerability in Code Validation Endpoint (Jun 30, 2026).
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.
CVSS 9.9 (version 3.1; evidence as of Oct 23, 2026; https://github.com/advisories/GHSA-v798-mcc6-2m3m).
EPSS 1.6% for the following 30 days, scored Oct 26, 2026 (https://api.first.org/data/v1/epss?cve=CVE-2026-7873&date=2026-10-26).
Sources:
GitHub-reviewed advisory GHSA-v798-mcc6-2m3m: https://github.com/advisories/GHSA-v798-mcc6-2m3m
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yM1QyMDo1MTozMFrOAAf0Mg%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc
FIRST measured EPSS score: https://api.first.org/data/v1/epss?cve=CVE-2026-7873&date=2026-10-26
Record ID: CVE-2026-7873.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Oct 27, 2026, 01:40 UTC. Ingestion is not an independent editorial investigation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

Record JSON

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Record details

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