CVE-2026-7658: IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate the username field, allowing attackers to inject path t
Summary
IBM Langflow OSS (open-source software) versions 1.0.0 through 1.10.3 has a vulnerability where the username field is not properly checked, allowing attackers to use path traversal (a technique to access files outside intended directories by using sequences like '../'). This flaw could let attackers delete files from any directory, destroy data belonging to other users, or remove JWT signing keys (cryptographic keys used to verify user sessions), which would invalidate all user sessions.
Vulnerability Details
6.5(medium)
EPSS: 0.0%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
network
low
low
none
August 5, 2026
Classification
Affected Vendors
Related Issues
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Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-7658
First tracked: August 5, 2026 at 08:08 PM
Classified by LLM (prompt v3) · confidence: 92%