CVE-2026-33760

Source
https://cve.org/CVERecord?id=CVE-2026-33760
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33760.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33760
Aliases
Published
2026-06-23T16:30:16Z
Modified
2026-08-12T03:51:12Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Langflow: IDOR/BOLA in Monitor API — Missing Ownership Enforcement on 7 Endpoints
Details

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, sessions, build artifacts, and LLM transaction logs — without verifying that the authenticated requester owns the targeted resource. Any authenticated user can read, modify, rename, or permanently delete another user's data by supplying the target's resource ID or flow_id. This is a classic IDOR/BOLA vulnerability. Notably, the same source file (monitor.py) contains one correctly-implemented endpoint that uses an ownership check, demonstrating the correct pattern was known but inconsistently applied. This vulnerability is fixed in 1.9.0.

Database specific
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33760.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
Database specific
Show details
{
    "cpe": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.9.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

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
1.8.0.rc0
1.8.0.rc1
1.8.0.rc2
1.8.0.rc3
1.8.0.rc4
1.8.0.rc5
1.8.0.rc6
1.8.1
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-2026-33760.json"