CVE-2026-81940— Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
Quick assessment
Affected
IBM Langflow OSS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
IBM Langflow OSS 版本 1.0.0 至 1.11.5 可能存在一个安全漏洞：由于对流程（flow）显示名称中的特殊字符未进行适当转义或处理，经过身份验证的远程攻击者可能借此执行任意代码。
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I. Basic Information for CVE-2026-81940
Vulnerability Information
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Vulnerability Title
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to improper neutralization of special characters in flow display names.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| IBM | Langflow OSS | 1.0.0 ~ 1.11.5 |
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
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II. Public POCs for CVE-2026-81940
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-81940 (1)
Same Patch Batch · IBM · 2026-09-10 · 49 CVEs total
| CVE-2026-81204 | 9.8 CRITICAL | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
| CVE-2026-79724 | 9.8 CRITICAL | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
| CVE-2026-85025 | 9.8 CRITICAL | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
| CVE-2026-78573 | 9.8 CRITICAL | IBM ContextForge MCP Gateway is affected by use of default credentials |
| CVE-2026-82100 | 9.6 CRITICAL | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-82107 | 9.6 CRITICAL | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-19646 | 9.1 CRITICAL | Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a |
| CVE-2026-80424 | 9.1 CRITICAL | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-76059 | 8.8 HIGH | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
| CVE-2026-81211 | 8.8 HIGH | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
| CVE-2026-81941 | 8.8 HIGH | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
| CVE-2026-81550 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-81551 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-81554 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-82092 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-82095 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-82097 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-82098 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-82099 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-78569 | 8.8 HIGH | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
Showing top 20 of 49 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Langflow is vulnerable to arbitrary code execution due to mu
Same weakness: CWE-94
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V. Comments for CVE-2026-81940
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