CVE-2026-8505
published 2026-07-17CVE-2026-8505: IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of…
PriorityP268critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
1.04%
62.8th percentile
IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of any flow. The system incorrectly bypasses API key validation when the WEBHOOK_AUTH_ENABLE configuration is set to False (which is the default setting). This allows a remote attacker who knows a flow's UUID to execute it as if they were the owner, potentially leading to Remote Code Execution (RCE).
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ibm | langflow_oss | 1.0.0 – 1.10.0 | — |
| langflow | langflow | >= 1.0.0 < 1.10.1 | 1.10.1 |
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VulDB
IBM Langflow OSS up to 1.10.0 Webhook Authentication UUID improper authentication
vuldb·2026-07-18·CVSS 9.8
CVE-2026-8505 [CRITICAL] IBM Langflow OSS up to 1.10.0 Webhook Authentication UUID improper authentication
A vulnerability classified as critical was found in IBM Langflow OSS up to 1.10.0. The impacted element is an unknown function of the component Webhook Authentication. Executing a manipulation of the argument UUID can lead to improper authentication.
This vulnerability is tracked as CVE-2026-8505. The attack can be launched remotely. No exploit exists.
GHSA
IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of any flow.
ghsa_unreviewed·2026-07-17
CVE-2026-8505 [CRITICAL] IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of any flow.
IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of any flow. The system incorrectly bypasses API key validation when the WEBHOOK_AUTH_ENABLE configuration is set to False (which is the default setting). This allows a remote attacker who knows a flow's UUID to execute it as if they were the owner, potentially leading to Remote Code Execution (RCE).
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-17
Published