CVE-2026-19297— Insufficient Authentication Brute Force Protection on Login Endpoint
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是美国IBM公司的一款可视化构建AI工作流的低代码工具平台。 IBM Langflow OSS 1.0.0版本至1.9.6版本存在授权问题漏洞，该漏洞源于对过多身份验证尝试的限制不当，可能导致远程攻击者未经授权访问用户账户。
Possible ATT&CK Techniques 1 AI
T1110.004 · Credential StuffingAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| IBM | Langflow OSS | 1.0.0≤ 1.9.6 |
affected |
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I. Basic Information for CVE-2026-19297
Vulnerability Information
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Vulnerability Title
Insufficient Authentication Brute Force Protection on Login Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
IBM Langflow OSS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM Langflow OSS是美国IBM公司的一款可视化构建AI工作流的低代码工具平台。 IBM Langflow OSS 1.0.0版本至1.9.6版本存在授权问题漏洞，该漏洞源于对过多身份验证尝试的限制不当，可能导致远程攻击者未经授权访问用户账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| IBM | Langflow OSS | 1.0.0 ~ 1.9.6 |
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
|
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II. Public POCs for CVE-2026-19297
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-19297 (1)
Same Patch Batch · IBM · 2026-08-13 · 74 CVEs total
| CVE-2026-17482 | 9.8 CRITICAL | IBM Documentation Offline is vulnerable to information disclosure, session forgery and rem |
| CVE-2026-14525 | 9.4 CRITICAL | IBM WebSphere Application Server Liberty is affected by an authenication bypass |
| CVE-2026-18193 | 8.9 HIGH | IBM i Is Affected By Multiple Vulnerabilities in IBM Java SDK and IBM Java Runtime |
| CVE-2026-16674 | 8.8 HIGH | IBM i is Affected By Multiple Vulnerabilities in WebSphere Application Server Liberty |
| CVE-2026-17029 | 8.8 HIGH | IBM i is Affected By Multiple Vulnerabilities in Java Secure Sockets Extension |
| CVE-2026-18101 | 8.8 HIGH | IBM i is Affected By Multiple Vulnerabilities in WebSphere Application Server Liberty |
| CVE-2026-17481 | 8.8 HIGH | IBM Documentation Offline is vulnerable to information disclosure, session forgery and rem |
| CVE-2026-17223 | 8.8 HIGH | IBM i is Affected By Multiple Vulnerabilities in Host Servers |
| CVE-2026-16722 | 8.8 HIGH | IBM i is Affected By An Unauthorized Privileges Vulnerability in SQL [] |
| CVE-2026-16975 | 8.8 HIGH | IBM i is Affected By A Remote Code Execution Vulnerability [] |
| CVE-2026-16987 | 8.8 HIGH | IBM i is Affected By An Improper Validation Vulnerability in PASE [] |
| CVE-2026-16815 | 8.6 HIGH | IBM i is Affected By Multiple Vulnerabilities in Simple Mail Transfer Protocol |
| CVE-2026-17502 | 8.6 HIGH | IBM i is Affected By Multiple Vulnerabilities in NetServer |
| CVE-2026-16967 | 8.5 HIGH | IBM i is Affected By Multiple SQL Vulnerabilities [, ] |
| CVE-2026-16908 | 8.5 HIGH | IBM i is Affected By Multiple SQL Vulnerabilities [, ] |
| CVE-2026-18249 | 8.4 HIGH | IBM i Is Affected By Multiple Vulnerabilities in IBM Java SDK and IBM Java Runtime |
| CVE-2026-17101 | 8.3 HIGH | IBM i is Affected By Multiple Vulnerabilities in Navigator for i |
| CVE-2026-17272 | 8.2 HIGH | IBM i is Affected By a Denial of Service in HTTP Server [] |
| CVE-2026-18509 | 8.2 HIGH | IBM i is Affected By A Prvilege Escalation Vulnerability [] |
| CVE-2026-17220 | 8.2 HIGH | IBM i is Affected By Multiple Vulnerabilities in Host Servers |
Showing top 20 of 74 CVEs. View all on vendor page → →
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V. Comments for CVE-2026-19297
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