PYSEC-2026-223
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/langflow/PYSEC-2026-223.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-223
- Aliases
-
- CVE-2026-55446
- GHSA-qwqc-p3q8-wcg9
- Published
- 2026-06-23T17:17:08.410Z
- Modified
- 2026-06-26T00:00:06.012034837Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.0.19, an attacker can send a /api/v1/files/upload/ request without any authentication token/cookies and abuse a very long multipart form boundary to make the langflow app unusable for all users for an indefinite amount of time. This vulnerability is fixed in 1.0.19.
- References
Affected packages
PyPI / langflow
Package
- Name
- langflow
- View open source insights on deps.dev
- Purl
- pkg:pypi/langflow
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed1.0.19
Affected versions
0.*
0.0.31
0.0.32
0.0.33
0.0.40
0.0.44
0.0.45
0.0.46
0.0.52
0.0.53
0.0.54
0.0.55
0.0.56
0.0.57
0.0.58
0.0.61
0.0.62
0.0.63
0.0.64
0.0.65
0.0.66
0.0.67
0.0.68
0.0.69
0.0.70
0.0.71
0.0.72
0.0.73
0.0.74
0.0.75
0.0.76
0.0.78
0.0.79
0.0.80
0.0.81
0.0.83
0.0.84
0.0.85
0.0.86
0.0.87
0.0.88
0.0.89
0.1.0
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
0.2.10
0.2.11
0.2.12
0.2.13
0.3.0
0.3.1
0.3.2
0.3.3
0.3.4
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.4.5
0.4.6
0.4.7
0.4.8
0.4.9
0.4.10
0.4.11
0.4.12
0.4.14
0.4.15
0.4.16
0.4.17
0.4.18
0.4.19
0.4.20
0.4.21
0.5.0a0
0.5.0a1
0.5.0a2
0.5.0a3
0.5.0a4
0.5.0a5
0.5.0a6
0.5.0b0
0.5.0b2
0.5.0b3
0.5.0b4
0.5.0b5
0.5.0b6
0.5.0
0.5.1
0.5.2
0.5.3
0.5.4
0.5.5
0.5.6
0.5.7
0.5.8
0.5.9
0.5.10
0.5.11
0.5.12
0.6.0rc1
0.6.0
0.6.1
0.6.2
0.6.3a0
0.6.3a1
0.6.3a2
0.6.3a3
0.6.3a4
0.6.3a5
0.6.3a6
0.6.3a7
0.6.3
0.6.4a0
0.6.4a1
0.6.4
0.6.5a0
0.6.5a1
0.6.5a2
0.6.5a3
0.6.5a4
0.6.5a5
0.6.5a6
0.6.5a7
0.6.5a8
0.6.5a9
0.6.5a10
0.6.5a11
0.6.5a12
0.6.5a13
0.6.5
0.6.6
0.6.7a1
0.6.7a2
0.6.7a3
0.6.7a5
0.6.7
0.6.8
0.6.9
0.6.10
0.6.11
0.6.12
0.6.14
0.6.15
0.6.16
0.6.17
0.6.18
0.6.19
1.*
1.0.0a0
1.0.0a1
1.0.0a2
1.0.0a3
1.0.0a4
1.0.0a5
1.0.0a6
1.0.0a7
1.0.0a8
1.0.0a9
1.0.0a10
1.0.0a11
1.0.0a12
1.0.0a13
1.0.0a14
1.0.0a15
1.0.0a17
1.0.0a18
1.0.0a19
1.0.0a20
1.0.0a21
1.0.0a22
1.0.0a23
1.0.0a24
1.0.0a25
1.0.0a26
1.0.0a27
1.0.0a28
1.0.0a29
1.0.0a30
1.0.0a31
1.0.0a32
1.0.0a33
1.0.0a34
1.0.0a35
1.0.0a36
1.0.0a37
1.0.0a38
1.0.0a39
1.0.0a40
1.0.0a41
1.0.0a42
1.0.0a43
1.0.0a44
1.0.0a45
1.0.0a46
1.0.0a47
1.0.0a48
1.0.0a49
1.0.0a50
1.0.0a51
1.0.0a52
1.0.0a53
1.0.0a55
1.0.0a56
1.0.0a57
1.0.0a58
1.0.0a59
1.0.0a60
1.0.0a61
1.0.0rc0
1.0.0rc1
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.0.8
1.0.9
1.0.10
1.0.11
1.0.12
1.0.13
1.0.14
1.0.15
1.0.16
1.0.17
1.0.18