PYSEC-2025-78
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/langflow/PYSEC-2025-78.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2025-78
- Aliases
- Published
- 2025-12-05T23:15:47.433Z
- Modified
- 2026-06-10T17:01:58.704525618Z
- 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
- [none]
- Details
-
Langflow versions up to and including 1.6.9 contain a chained vulnerability that enables account takeover and remote code execution. An overly permissive CORS configuration (alloworigins='*' with allowcredentials=True) combined with a refresh token cookie configured as SameSite=None allows a malicious webpage to perform cross-origin requests that include credentials and successfully call the refresh endpoint. An attacker-controlled origin can therefore obtain fresh accesstoken / refreshtoken pairs for a victim session. Obtained tokens permit access to authenticated endpoints — including built-in code-execution functionality — allowing the attacker to execute arbitrary code and achieve full system compromise.
- References
-
- https://www.vulncheck.com/advisories/langflow-cors-misconfiguration-to-token-hijack-and-rce
- https://github.com/langflow-ai/langflow
- https://www.obsidiansecurity.com/blog/cve-2025-34291-critical-account-takeover-and-rce-vulnerability-in-the-langflow-ai-agent-workflow-platform
- https://github.com/advisories/GHSA-577h-p2hh-v4mv
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 affectedFixed1.7.0
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
1.0.19
1.0.19.post1
1.0.19.post2
1.1.0
1.1.1
1.1.2
1.1.3
1.1.4
1.1.4.post1
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
1.4.3
1.5.0
1.5.0.post1
1.5.0.post2
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.6.8
1.6.9