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HIGH · 8.8

CVE-2026-7667

IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to create a malicious flow pointing to an attacker-controlled URL that returns a specially crafted Content-Disposition header (e....

Vulnerability Description

IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to create a malicious flow pointing to an attacker-controlled URL that returns a specially crafted Content-Disposition header (e.g., filename="../../../target/path" ), enabling arbitrary file write operations with attacker-controlled content to any path accessible by the Langflow process.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
LangflowLangflow>= 1.0.0, < 1.10.1
AppleMacos-
LinuxLinux Kernel-
MicrosoftWindows-

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2026-7667?

CVE-2026-7667 is a vulnerability with a CVSS score of 8.8 (HIGH). IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to create a malicious flow pointing to an attacker-controlled URL that returns a specially crafted Content-Disposition header (e....

How severe is CVE-2026-7667?

CVE-2026-7667 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-7667?

Check the references section above for vendor advisories and patch information. Affected products include: Langflow Langflow, Apple Macos, Linux Linux Kernel, Microsoft Windows.