CVE-2026-39890
CVE-2026-39890 · PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
PraisonAI is a multi-agent teams system. Prior to 4.5.115, the AgentService.loadAgentFromFile method uses the js-yaml library to parse YAML files without disabling dangerous tags (such as !!js/function and !!js/undefined). This allows an attacker to craft a malicious YAML file that, when parsed, executes arbitrary JavaScript code. An attacker can exploit this vulnerability by uploading a malicious agent definition file via the API endpoint, leading to remote code execution (RCE) on the server. This vulnerability is fixed in 4.5.115.
CVSS 9.8 · Critical · EPSS 0.6% · Fix available
- Published
- Updated
Stack: python
Affected products and versions
praisonai
- Versions
- < 4.5.115: Affected
No fix published
praisonai PyPI
- Versions
- 0.0.1
- 0.0.10
- 0.0.11
- 0.0.12
- 0.0.13
- 0.0.14
- 0.0.15
- 0.0.16
- 0.0.17
- 0.0.18
- 0.0.19
- 0.0.2
- 0.0.20
- 0.0.21
- 0.0.22
- 0.0.23
- 0.0.24
- 0.0.25
- 0.0.26
- 0.0.27
- 0.0.28
- 0.0.29
- 0.0.3
- 0.0.30
- 0.0.31
- 0.0.32
- 0.0.33
- 0.0.34
- 0.0.35
- 0.0.36
- 0.0.37
- 0.0.38
- 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
- 0.0.59rc5
- 0.0.59rc6
- 0.0.59rc7
- 0.0.59rc8
- 0.0.59rc9
- 0.0.6
- 0.0.61
- 0.0.64
- 0.0.65
- 0.0.66
- 0.0.67
- 0.0.68
- 0.0.69
- 0.0.7
- 0.0.70
- 0.0.71
- 0.0.72
- 0.0.73
- 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
- 0.1.5
- 0.1.6
- 0.1.7
- 0.1.8
- 0.1.9
- 1.0.0
- 1.0.1
- 1.0.10
- 1.0.11
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.8
- 1.0.9
- 2.0.0
- 2.0.1
- 2.0.10
- 2.0.11
- 2.0.12
- 2.0.13
- 2.0.14
- 2.0.15
- 2.0.16
- 2.0.17
- 2.0.18
- 2.0.19
- 2.0.2
- 2.0.20
- 2.0.22
- 2.0.23
- 2.0.24
- 2.0.25
- 2.0.26
- 2.0.27
- 2.0.28
- 2.0.29
- 2.0.3
- 2.0.30
- 2.0.31
- 2.0.32
- 2.0.33
- 2.0.34
- 2.0.35
- 2.0.36
- 2.0.37
- 2.0.38
- 2.0.39
- 2.0.40
- 2.0.41
- 2.0.42
- 2.0.43
- 2.0.44
- 2.0.45
- 2.0.46
- 2.0.47
- 2.0.48
- 2.0.49
- 2.0.5
- 2.0.50
- 2.0.51
- 2.0.53
- 2.0.54
- 2.0.55
- 2.0.56
- 2.0.57
- 2.0.58
- 2.0.59
- 2.0.6
- 2.0.60
- 2.0.61
- 2.0.62
- 2.0.63
- 2.0.64
- 2.0.65
- 2.0.66
- 2.0.67
- 2.0.68
- 2.0.69
- 2.0.7
- 2.0.70
- 2.0.71
- 2.0.72
- 2.0.73
- 2.0.74
- 2.0.75
- 2.0.76
- 2.0.77
- 2.0.78
- 2.0.79
- 2.0.8
- 2.0.80
- 2.0.81
- 2.0.9
- 2.1.0
- 2.1.1
- 2.1.4
- 2.1.5
- 2.1.6
- 2.2.1
- 2.2.10
- 2.2.11
- 2.2.12
- 2.2.13
- 2.2.14
- 2.2.15
- 2.2.16
- 2.2.17
- 2.2.18
- 2.2.19
- 2.2.2
- 2.2.20
- 2.2.21
- 2.2.22
- 2.2.24
- 2.2.25
- 2.2.26
- 2.2.27
- 2.2.28
- 2.2.29
- 2.2.3
- 2.2.30
- 2.2.31
- 2.2.32
- 2.2.33
- 2.2.34
- 2.2.35
- 2.2.36
- 2.2.37
- 2.2.38
- 2.2.39
- 2.2.4
- 2.2.40
- 2.2.41
- 2.2.42
- 2.2.43
- 2.2.44
- 2.2.45
- 2.2.46
- 2.2.47
- 2.2.48
- 2.2.49
- 2.2.5
- 2.2.50
- 2.2.51
- 2.2.52
- 2.2.53
- 2.2.54
- 2.2.55
- 2.2.56
- 2.2.57
- 2.2.58
- 2.2.59
- 2.2.6
- 2.2.60
- 2.2.61
- 2.2.62
- 2.2.63
- 2.2.64
- 2.2.65
- 2.2.66
- 2.2.67
- 2.2.68
- 2.2.69
- 2.2.7
- 2.2.70
- 2.2.71
- 2.2.72
- 2.2.73
- 2.2.74
- 2.2.75
- 2.2.76
- 2.2.77
- 2.2.78
- 2.2.79
- 2.2.8
- 2.2.80
- 2.2.81
- 2.2.82
- 2.2.83
- 2.2.84
- 2.2.86
- 2.2.87
- 2.2.88
- 2.2.89
- 2.2.9
- 2.2.90
- 2.2.91
- 2.2.93
- 2.2.95
- 2.2.96
- 2.2.97
- 2.2.98
- 2.2.99
- 2.3.0
- 2.3.1
- 2.3.10
- 2.3.11
- 2.3.12
- 2.3.13
- 2.3.14
- 2.3.15
- 2.3.16
- 2.3.18
- 2.3.19
- 2.3.2
- 2.3.20
- 2.3.21
- 2.3.22
- 2.3.23
- 2.3.24
- 2.3.25
- 2.3.26
- 2.3.27
- 2.3.28
- 2.3.29
- 2.3.3
- 2.3.30
- 2.3.31
- 2.3.32
- 2.3.33
- 2.3.34
- 2.3.35
- 2.3.36
- 2.3.37
- 2.3.38
- 2.3.39
- 2.3.4
- 2.3.40
- 2.3.41
- 2.3.42
- 2.3.43
- 2.3.44
- 2.3.45
- 2.3.46
- 2.3.47
- 2.3.48
- 2.3.49
- 2.3.5
- 2.3.50
- 2.3.51
- 2.3.52
- 2.3.53
- 2.3.54
- 2.3.55
- 2.3.56
- 2.3.57
- 2.3.58
- 2.3.59
- 2.3.6
- 2.3.60
- 2.3.61
- 2.3.62
- 2.3.63
- 2.3.64
- 2.3.65
- 2.3.66
- 2.3.67
- 2.3.68
- 2.3.69
- 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
- 2.4.2
- 2.4.3
- 2.4.4
- 2.5.0
- 2.5.1
- 2.5.2
- 2.5.3
- 2.5.4
- 2.5.5
- 2.5.6
- 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
- 2.9.2
- 3.0.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.1.0
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.10.0
- 3.10.1
- 3.10.10
- 3.10.11
- 3.10.12
- 3.10.13
- 3.10.14
- 3.10.15
- 3.10.16
- 3.10.17
- 3.10.18
- 3.10.19
- 3.10.2
- 3.10.20
- 3.10.21
- 3.10.22
- 3.10.23
- 3.10.24
- 3.10.25
- 3.10.26
- 3.10.27
- 3.10.3
- 3.10.4
- 3.10.5
- 3.10.6
- 3.10.7
- 3.10.8
- 3.10.9
- 3.11.0
- 3.11.1
- 3.11.10
- 3.11.11
- 3.11.12
- 3.11.13
- 3.11.14
- 3.11.2
- 3.11.3
- 3.11.4
- 3.11.8
- 3.11.9
- 3.12.0
- 3.12.1
- 3.12.2
- 3.12.3
- 3.2.0
- 3.2.1
- 3.3.0
- 3.3.1
- 3.4.0
- 3.4.1
- 3.5.0
- 3.5.1
- 3.5.2
- 3.5.3
- 3.5.4
- 3.5.5
- 3.5.6
- 3.5.7
- 3.5.8
- 3.5.9
- 3.6.0
- 3.6.1
- 3.6.2
- 3.7.0
- 3.7.1
- 3.7.2
- 3.7.3
- 3.7.4
- 3.7.5
- 3.7.6
- 3.7.7
- 3.7.8
- 3.7.9
- 3.8.0
- 3.8.1
- 3.8.10
- 3.8.11
- 3.8.12
- 3.8.13
- 3.8.14
- 3.8.16
- 3.8.17
- 3.8.18
- 3.8.19
- 3.8.2
- 3.8.20
- 3.8.21
- 3.8.22
- 3.8.3
- 3.8.4
- 3.8.5
- 3.8.6
- 3.8.7
- 3.8.8
- 3.8.9
- 3.9.0
- 3.9.1
- 3.9.10
- 3.9.11
- 3.9.12
- 3.9.13
- 3.9.14
- 3.9.15
- 3.9.16
- 3.9.17
- 3.9.18
Update to 4.5.115