CVE-2026-55529
CVE-2026-55529 · PraisonAI: Origin validation bypass in MCP HTTP Stream transport allows browser-mediated unauthenticated tool execution on local MCP server
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PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, the MCP HTTP Stream _validate_origin method accepts request_origin.startswith(allowed), so the attacker-controlled localhost.evil.example HTTP origin matches the localhost allowlist. Without an API key, a malicious webpage can submit tools/call requests to the local MCP server and execute exposed tools. This issue is fixed in version 4.6.58.
CVSS 6.9 · Mittel · EPSS 0,2% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: python
Betroffene Produkte und Versionen
praisonai
- Softwareversionen
- < 4.6.58: Betroffen
Keine Korrektur veröffentlicht
praisonai PyPI
- Softwareversionen
- 0.0.1
- 0.0.10
- 0.0.11
- 0.0.12
- 0.0.13
- 0.0.14
- 0.0.15
- 0.0.16
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- 0.0.2
- 0.0.20
- 0.0.21
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- 0.0.24
- 0.0.25
- 0.0.26
- 0.0.27
- 0.0.28
- 0.0.29
- 0.0.3
- 0.0.30
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- 0.0.33
- 0.0.34
- 0.0.35
- 0.0.36
- 0.0.37
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- 0.0.39
- 0.0.4
- 0.0.40
- 0.0.41
- 0.0.42
- 0.0.43
- 0.0.44
- 0.0.45
- 0.0.46
- 0.0.47
- 0.0.48
- 0.0.49
- 0.0.5
- 0.0.50
- 0.0.52
- 0.0.53
- 0.0.54
- 0.0.55
- 0.0.56
- 0.0.57
- 0.0.58
- 0.0.59
- 0.0.59rc11
- 0.0.59rc2
- 0.0.59rc3
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- 0.0.59rc6
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- 0.0.59rc8
- 0.0.59rc9
- 0.0.6
- 0.0.61
- 0.0.64
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- 0.0.70
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- 0.0.74
- 0.0.8
- 0.0.9
- 0.1.0
- 0.1.1
- 0.1.10
- 0.1.2
- 0.1.3
- 0.1.4
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- 0.1.9
- 1.0.0
- 1.0.1
- 1.0.10
- 1.0.11
- 1.0.2
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- 1.0.9
- 2.0.0
- 2.0.1
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- 2.0.3
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- 2.0.7
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- 2.0.9
- 2.1.0
- 2.1.1
- 2.1.4
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- 2.2.1
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- 2.3.0
- 2.3.1
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- 2.3.40
- 2.3.41
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- 2.3.50
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- 2.3.53
- 2.3.54
- 2.3.55
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- 2.3.58
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- 2.3.6
- 2.3.60
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- 2.3.68
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- 2.3.7
- 2.3.70
- 2.3.71
- 2.3.72
- 2.3.73
- 2.3.74
- 2.3.75
- 2.3.76
- 2.3.77
- 2.3.78
- 2.3.79
- 2.3.8
- 2.3.80
- 2.3.81
- 2.3.82
- 2.3.83
- 2.3.84
- 2.3.85
- 2.3.86
- 2.3.87
- 2.3.9
- 2.4.0
- 2.4.1
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- 2.4.3
- 2.4.4
- 2.5.0
- 2.5.1
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- 2.5.7
- 2.6.0
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.6.5
- 2.6.6
- 2.6.7
- 2.6.8
- 2.7.0
- 2.8.3
- 2.8.4
- 2.8.5
- 2.8.6
- 2.8.7
- 2.8.8
- 2.8.9
- 2.9.0
- 2.9.1
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- 3.0.0
- 3.0.1
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- 3.0.3
- 3.0.4
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- 3.1.0
- 3.1.1
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- 3.11.1
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- 3.12.0
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- 3.2.0
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- 3.3.1
- 3.4.0
- 3.4.1
- 3.5.0
- 3.5.1
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- 3.5.3
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- 3.5.5
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- 3.5.7
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- 3.6.0
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- 3.7.0
- 3.7.1
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- 3.8.0
- 3.8.1
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- 3.9.0
- 3.9.1
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- 3.9.13
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- 3.9.16
- 3.9.17
- 3.9.18
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