Is CVE-2026-8505 actively exploited?

No active exploitation of CVE-2026-8505 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-8505 be exploited remotely?

Yes. CVE-2026-8505 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-8505?

CVE-2026-8505 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-8505

Published: July 17, 2026· Updated: Jul 23, 2026

9.8

CVSS v3.1

EPSS:0.60%probability of exploitation in 30 daysPercentile:44.5th

Official 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).

NVD Source

Risk Analysis

This critical vulnerability in IBM Langflow OSS allows unauthenticated users to trigger the execution of any flow due to a bypass in webhook authentication logic. This can lead to remote code execution and full system compromise. The CVSS score of 9.8 highlights the severe risk, especially with the default insecure configuration.

No public exploits are currently known for this vulnerability. It is remotely exploitable without requiring any authentication or user interaction.

Recommended Action

Upgrade IBM Langflow OSS to a version beyond 1.10.0. Ensure the WEBHOOK_AUTH_ENABLE configuration is set to True and implement strong API key validation for all webhook endpoints.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-8505 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.