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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
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| opensearch-ruby | rubygems | >= 2.0.0, < 2.0.2 | 2.0.2 |
The vulnerability stems from the use of YAML.load instead of YAML.safe_load in two locations. The GitHub commit diff explicitly shows these functions being patched. YAML.load is inherently unsafe for untrusted input due to its ability to deserialize arbitrary Ruby objects, which aligns with CWE-502 (Deserialization of Untrusted Data). The linked advisory and supporting references confirm this pattern as the root cause.
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