Advisory details:
github_osv / GHSA-9cc5-j3qq-69gv
| Advisory ID | github_osv/GHSA-9cc5-j3qq-69gv |
| Aliases | |
| Summary | Duplicate Advisory: Unauthenticated Flow Execution via Webhook Authentication Bypass ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-cf6m-vc3m-7cgm. This link is maintained to preserve external references. ## Original Description 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). |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 8.8 |
| Risk | 4.4 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 9.8 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9cc5-j3qq-69gv/GHSA-9cc5-j3qq-69gv.json |
| generic_textual | CRITICAL |
| Reference id | Reference type | URL |
|---|---|---|
| 7278921 | Advisory | https://www.ibm.com/support/pages/node/7278921 |
| CVE-2026-8505 | https://nvd.nist.gov/vuln/detail/CVE-2026-8505 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.