CVSS 3.0
7.8 highCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2018-1000210
High (7.8) in yamldotnet project yamldotnet. EPSS 1.5% chance of exploitation in the next 30 days.
YamlDotNet version 4.3.2 and earlier contains a Insecure Direct Object Reference vulnerability in The default behavior of Deserializer.Deserialize() will deserialize user-controlled types in the line "currentType = Type.GetType(nodeEvent.Tag.Substring(1), throwOnError: false);" and blindly instantiates them. that can result in Code execution in the context of the running process. This attack appear to be exploitable via Victim must parse a specially-crafted YAML file. This vulnerability appears to have been fixed in 5.0.0.
Severity
- EPSS
- 1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-502, CWE-639
- Published
- Modified
- Record from
- the NVD, synced
Affected
- yamldotnet_project:yamldotnet
References
- https://github.com/aaubry/YamlDotNet#version-500
- https://github.com/aaubry/YamlDotNet/blob/f96b7cc40a0498f8bafdeb49df3aa23aa2c60993/YamlDotNet/Serialization/NodeTypeResolvers/TypeNameInTagNodeTypeResolver.cs#L35
- https://github.com/aaubry/YamlDotNet#version-500
- https://github.com/aaubry/YamlDotNet/blob/f96b7cc40a0498f8bafdeb49df3aa23aa2c60993/YamlDotNet/Serialization/NodeTypeResolvers/TypeNameInTagNodeTypeResolver.cs#L35