CVE-2026-21445

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Source
https://cve.org/CVERecord?id=CVE-2026-21445
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21445.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-21445
Aliases
Published
2026-01-02T19:11:24.451Z
Modified
2026-04-10T05:38:28.592281Z
Severity
  • 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P CVSS Calculator
Summary
Langflow Missing Authentication on Critical API Endpoints
Details

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.0.dev45, multiple critical API endpoints in Langflow are missing authentication controls. The issue allows any unauthenticated user to access sensitive user conversation data, transaction histories, and perform destructive operations including message deletion. This affects endpoints handling personal data and system operations that should require proper authorization. Version 1.7.0.dev45 contains a patch.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21445.json"
}
References

Affected packages

Git / github.com/langflow-ai/langflow

Affected ranges

Type
GIT
Repo
https://github.com/langflow-ai/langflow
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6566b9f23a6e5786161e4a96bee4409de18468ce

Affected versions

1.*
1.1.2
1.1.3
1.1.4
1.2.0
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.4.0
1.4.1
1.4.2
1.5.0.post1
v0.*
v0.0.31
v0.0.69
v0.0.70
v0.0.71
v0.0.72
v0.0.73
v0.0.74
v0.0.75
v0.0.76
v0.0.77
v0.0.78
v0.0.79
v0.0.80
v0.0.81
v0.0.82
v0.0.83
v0.0.84
v0.0.85
v0.0.86
v0.0.87
v0.0.88
v0.0.89
v0.1.0
v0.1.2
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.1.7
v0.2.0
v0.2.1
v0.2.10
v0.2.11
v0.2.12
v0.2.13
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.4.0
v0.4.1
v0.4.10
v0.4.11
v0.4.12
v0.4.14
v0.4.15
v0.4.16
v0.4.17
v0.4.18
v0.4.19
v0.4.2
v0.4.20
v0.4.21
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v0.4.8
v0.4.9
v0.5.0
v0.5.0a0
v0.5.0a1
v0.5.0a2
v0.5.0a3
v0.5.0a4
v0.5.0a5
v0.5.0a6
v0.5.0b0
v0.5.0b2
v0.5.0b3
v0.5.0b4
v0.5.0b5
v0.5.0b6
v0.5.1
v0.5.10
v0.5.11
v0.5.12
v0.5.2
v0.5.3
v0.5.4
v0.5.5
v0.5.6
v0.5.7
v0.5.8
v0.5.9
v0.6.0
v0.6.0a0
v0.6.0rc1
v0.6.1
v0.6.10
v0.6.11
v0.6.12
v0.6.13
v0.6.14
v0.6.15
v0.6.16
v0.6.17
v0.6.18
v0.6.19
v0.6.2
v0.6.3
v0.6.3a0
v0.6.3a1
v0.6.3a2
v0.6.3a3
v0.6.3a4
v0.6.3a5
v0.6.3a6
v0.6.4
v0.6.5
v0.6.6
v0.6.7
v0.6.8
v0.6.9
v1.*
v1.0.10
v1.0.11
v1.0.12
v1.0.13
v1.0.14
v1.0.15
v1.0.16
v1.0.17
v1.0.18
v1.0.19
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21445.json"