ByteOS Network

NVD Vulnerability Details :

CVE-2026-55255

Undergoing Analysis

Source-security-advisories@github.com

Published At-23 Jun, 2026 | 17:17

Updated At-23 Jun, 2026 | 18:18

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, 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 1.9.2.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	9.9	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
			N/A

Type: Secondary

Version: 3.1

Base score: 9.9

Base severity: CRITICAL

Vector:

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Type: N/A

Version:

Base score:

Base severity: N/A

Vector:

Weaknesses

CWE ID	Type	Source
CWE-639	Secondary	security-advisories@github.com

CWE ID: CWE-639

Type: Secondary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/langflow-ai/langflow/pull/12832	security-advisories@github.com	N/A
https://github.com/langflow-ai/langflow/security/advisories/GHSA-qrpv-q767-xqq2	security-advisories@github.com	N/A
https://github.com/langflow-ai/langflow/security/advisories/GHSA-qrpv-q767-xqq2	134c704f-9b21-4f2e-91b3-4a467353bcc0	N/A