critical9.8
CVE-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 a…
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | langflow | >= 1.7.0, <= 1.9.0 | 1.9.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Langflow | Langflow | from 1.0.0 before 1.10.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-cf6m-vc3m-7cgm
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-cf6m-vc3m-7cgm
- https://nvd.nist.gov/vuln/detail/CVE-2026-8505
- https://github.com/langflow-ai/langflow/pull/12845
- https://github.com/langflow-ai/langflow/commit/cb6f7508dda83ead9c3e4417e96e4b5bd9a260c3
- https://github.com/langflow-ai/langflow/releases/tag/v1.9.1
- https://www.ibm.com/support/pages/node/7278921