CVE-2026-8505Patch(apple / langflow)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch apple langflow systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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).

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1.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://www.ibm.com/support/pages/node/7278921

Weakness type (CWE)

CWE-306

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

langflow
linux_kernel
macos
windows

Threat summary

Patch or workaround signal is available
3 mentions across 3 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 2 signals
Disclosure: 1 classified signal
Peaked 2d ago at 1 mentions (2026-07-20); latest day: 1
3 total mentions across 3 days

Affected systems

Vendors

apple langflow linux microsoft

Products

langflowlinux_kernelmacoswindows

1 version affected across 4 products

Deep dive

Activity timeline3 mentions / 3d

Signal classification2 categories

Patch

150.0%

Disclosure

150.0%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-07-20	1	Patch1
2026-07-21	1	Disclosure1

Full discourse3 posts

ATIK@atikbytes23h
Running Langflow anywhere reachable from the internet? Two critical bugs to patch today 🧵 1/ CVE-2026-8505: in Langflow 1.7.0 through 1.9.0, webhook endpoints skipped the API key check by default. Anyone who knew a flow's ID could run it as you. Fixed in 1.9.1. https://vibevulns.com/issues/cve-2026-8505-langflow-webhook-auth-bypass-unauthenticated-flow-execution/?v=2 2/ CVE-2026-10561: before 1.10.1, the Python Interpreter component had no real sandbox. Any logged-in user who could edit a flow could run OS commands and make themselves superuser. https://vibevulns.com/issues/cve-2026-8505-langflow-webhook-auth-bypass-unauthenticated-flow-execution/?v=2 3/ Fix: upgrade to 1.12.3+ (the maintainers' recommendation), don't set LANGFLOW_WEBHOOK_AUTH_ENABLE=false, and turn off the interpreter if you don't use it (LANGFLOW_BLOCK_CODE_INTERPRETER_COMPONENTS=true).
0000019
61 followersView on X
DailyCVE@dailycve91d
Disclosure
🔴 #IBM Langflow OSS, Authentication Bypass, #CVE-2026-8505 (Critical) -DC-Jul2026-1112 https://dailycve.com/ibm-langflow-oss-authentication-bypass-cve-2026-8505-critical-dc-jul2026-1112/
Post summary
A short announcement of a newly discovered critical authentication bypass in IBM Langflow OSS (CVE-2026-8505).
0000055
220 followersView on X
SecEngCyGy@snypet8692d
Patch
Langflow OSS: webhook auth bypass by default (CVE-2026-8505). WEBHOOK_AUTH_ENABLE=False skips API keys. Unauth flow exec if UUID known - RCE path. CVSS 9.8. 1.0.0-1.10.0. Fix: 1.10.1. Enable webhook auth; don't expose builder APIs. https://www.ibm.com/support/pages/node/7278921
Post summary
CVE‑2026‑8505 exposes a default webhook authentication bypass in Langflow OSS, enabling remote code execution; the issue is addressed by upgrading to version 1.10.1 or enabling webhook auth.
0000050
19 followersView on X

CPE platform detail4 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

4 of 4 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	apple	macos	-	-	-
App	langflow	langflow	-	-	-
OS	linux	linux_kernel	-	-	-
OS	microsoft	windows	-	-	-

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