CVE-2026-81213— Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
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 1.0.0 至 1.11.5 版本允许远程攻击者通过内部网络资源获取敏感信息，原因是系统对用户提供 URL 的验证不当。
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I. Basic Information for CVE-2026-81213
Vulnerability Information
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Vulnerability Title
Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to obtain sensitive information from internal network resources due to improper validation of user-supplied URLs.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
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-2026-81213
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-81213 (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-2026-80424 | 9.1 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-2026-81554 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-81940 | 8.8 HIGH | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
| CVE-2026-78571 | 8.8 HIGH | Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit |
| 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-2026-82092 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
| CVE-2026-81550 | 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-2026-81941 | 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-2026-81551 | 8.8 HIGH | DataStage on Cloud Pak for Data has several vulnerabilities due to open source software |
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 -
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Langflow is vulnerable to arbitrary code execution due to mu -
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Langflow is vulnerable to server-side request forgery due to
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Same weakness: CWE-918
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Langflow is vulnerable to server-side request forgery due to -
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CVE-2026-82097
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V. Comments for CVE-2026-81213
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