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CVE-2026-55255

HighCVSS 8.4 / 10
Published Jun 23, 2026·Last modified Jul 10, 2026
Affected Components(0)

No affected components available

Description

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, an Insecure Direct Object Reference (IDOR) vulnerability in /api/v1/responses endpoint allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request. This vulnerability is fixed in 1.9.1.

Risk Scores
Base Score
8.4

The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a low impact on the availability of the system.

Threat Intelligence
8.4

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
29.05%

The exploit probability is moderate. The vulnerability is likely to be exploited in the next 30 days.

Exploit
1 exploit

1 exploit found for this vulnerability.

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