---
title: "CVE-2026-7873: Langflow: Code Injection Vulnerability in Code Validation Endpoint"
url: https://erroneo.us/security/cve/CVE-2026-7873/
description: "CVE-2026-7873 (langflow (PyPI)): IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated attackers to execute arbitrary OS commands and read sensitive…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-06-30
date_modified: 2026-10-23
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-7873"
kev: false
cvss: 9.9
epss: 0.01071
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-7873: Langflow: Code Injection Vulnerability in Code Validation Endpoint

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 1.1% , percentile 65: FIRST’s model estimates a 1.1% chance of exploitation activity in the next 30 days, higher than 65% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes langflow (PyPI) >= 1.0.0, < 1.10.1.rc0, fixed in 1.10.1.rc0 . Check your lockfile, including transitive dependencies.

## What it is

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 packages

- PyPI `langflow` >= 1.0.0, < 1.10.1.rc0 → fixed: 1.10.1.rc0

## Affected products (CVE record)

- IBM Langflow OSS: 1.0.0 <= 1.10.0

## Severity

- ibm CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-23): 1.07% probability of exploitation activity in the next 30 days; percentile 65.

## Sources

- [ibm.com](https://www.ibm.com/support/pages/node/7278441)
- [GitHub Advisory GHSA-v798-mcc6-2m3m](https://github.com/advisories/GHSA-v798-mcc6-2m3m)
- [CVE.org record CVE-2026-7873](https://www.cve.org/CVERecord?id=CVE-2026-7873)
- [NVD entry CVE-2026-7873](https://nvd.nist.gov/vuln/detail/CVE-2026-7873)
- [github.com](https://github.com/langflow-ai/langflow/pull/13696)
- [github.com](https://github.com/langflow-ai/langflow/commit/e7c33dbaade20b5295c7fa26bf83cc1ff68fba02)
- [github.com](https://github.com/langflow-ai/langflow/releases/tag/1.10.1.rc0)

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Source page: https://erroneo.us/security/cve/CVE-2026-7873/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt