CVE-2026-55255
CVE-2026-55255 · Langflow: IDOR Vulnerability in `/api/v1/responses` Endpoint Allows Authenticated Attackers to Access Another User's Flow
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Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, an Insecure Direct Object Reference (IDOR) vulnerability in /api/v1/responses endpoint allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request. This vulnerability is fixed in 1.9.1.
CVSS 8.4 · Hoch · EPSS 0,9% · Im KEV-Katalog · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: python
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langflow
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- < 1.9.1: Betroffen
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langflow PyPI
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langflow PyPI
- Softwareversionen
- 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
- 0.2.10
- 0.2.11
- 0.2.12
- 0.2.13
- 0.2.2
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- 0.2.4
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- 0.2.6
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- 0.2.9
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- 0.3.1
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- 0.4.0
- 0.4.1
- 0.4.10
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- 0.6.7
- 0.6.7a1
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- 1.0.0
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- 1.0.0a13
- 1.0.0a14
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- 1.0.0a35
- 1.0.0a36
- 1.0.0a37
- 1.0.0a38
- 1.0.0a39
- 1.0.0a4
- 1.0.0a40
- 1.0.0a41
- 1.0.0a42
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- 1.0.0a44
- 1.0.0a45
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- 1.0.0a49
- 1.0.0a5
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- 1.0.0a53
- 1.0.0a55
- 1.0.0a56
- 1.0.0a57
- 1.0.0a58
- 1.0.0a59
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- 1.0.0a60
- 1.0.0a61
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- 1.0.0a8
- 1.0.0a9
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- 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
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Auf 1.9.2 aktualisieren
Originalquellen
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-qrpv-q767-xqq2
- https://github.com/langflow-ai/langflow/pull/12832
- https://github.com/langflow-ai/langflow/commit/2c9f498d664a3c32698b57d7c5e752625291060e
- https://webflow.sysdig.com/blog/understanding-langflow-cve-2026-55255-and-why-higher-cvss-vulnerabilities-arent-always-the-most-exploited
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-55255
- https://nvd.nist.gov/vuln/detail/CVE-2026-55255