opensearch-ruby 2.x before 2.0.2 vulnerable to unsafe YAML deserialization
Date: 2022-07
Affected: rubygems/opensearch-ruby
Attack vector: deserialization
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2022-31115
CWE: CWE-502
CVSS: 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

### Impact A YAML deserialization in opensearch-ruby 2.0.0 can lead to unsafe deserialization using YAML.load if the response is of type YAML. ### Patches The problem has been patched in opensearch-ruby gem version 2.0.2. ### Workarounds No viable workaround. Please upgrade to 2.0.2 ### References https://github.com/opensearch-project/opensearch-ruby/pull/77 https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/ ### For more information If you have any questions or comments about this advisory: * Open an issue in [opensearch-ruby](https://github.com/opensearch-project/opensearch-ruby)


Mitigations:

Architectural layers (MAESTRO):