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    CVE-2022-31115

    opensearch-ruby is a community-driven, open source fork of elasticsearch-ruby. In versions prior to 2.0.1 the ruby `YAML.load` function was used instead of `YAML.safe_load`. As a result opensearch-ruby 2.0.0 and prior can lead to unsafe deserialization using YAML.load if the response is of type YAML. An attacker must be in control of an opensearch server and convince the victim to connect to it in order to exploit this vulnerability. The problem has been patched in opensearch-ruby gem version 2.0.1. Users are advised to upgrade. There are no known workarounds for this issue.

    Published:Jun 30, 2022
    Last Modified:Apr 22, 2025
    EPS:Jun 30, 2022
    EPSS Score:0.00422
    CVSS Score:8.8

    Affected Products

    Vendor
    Amazon
    Product
    Opensearch

    Exploits

    https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High