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Vulnerability details: VCID-4bcd-g1mw-43fq
Vulnerability ID VCID-4bcd-g1mw-43fq
Aliases CVE-2022-31115
GHSA-977c-63xq-cgw3
Summary Unsafe YAML deserialization in opensearch-ruby ### 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
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-502 Deserialization of Untrusted Data
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00445 https://api.first.org/data/v1/epss?cve=CVE-2022-31115
epss 0.00445 https://api.first.org/data/v1/epss?cve=CVE-2022-31115
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-977c-63xq-cgw3
cvssv3.1 8.8 https://github.com/opensearch-project/opensearch-ruby
generic_textual HIGH https://github.com/opensearch-project/opensearch-ruby
cvssv3.1 8.8 https://github.com/opensearch-project/opensearch-ruby/commit/d74a98b45c037671e8819fa87f6a6423458ab08a
generic_textual HIGH https://github.com/opensearch-project/opensearch-ruby/commit/d74a98b45c037671e8819fa87f6a6423458ab08a
cvssv3.1 8.8 https://github.com/opensearch-project/opensearch-ruby/compare/v2.0.1...v2.0.2
generic_textual HIGH https://github.com/opensearch-project/opensearch-ruby/compare/v2.0.1...v2.0.2
cvssv3.1 8.8 https://github.com/opensearch-project/opensearch-ruby/pull/77
generic_textual HIGH https://github.com/opensearch-project/opensearch-ruby/pull/77
ssvc Track* https://github.com/opensearch-project/opensearch-ruby/pull/77
cvssv3 8.8 https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
cvssv3.1 8.8 https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
cvssv3.1_qr HIGH https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
generic_textual HIGH https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
ssvc Track* https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
cvssv3.1 8.8 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/opensearch-ruby/CVE-2022-31115.yml
generic_textual HIGH https://github.com/rubysec/ruby-advisory-db/blob/master/gems/opensearch-ruby/CVE-2022-31115.yml
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2022-31115
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2022-31115
cvssv3.1 8.8 https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated
generic_textual HIGH https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated
cvssv3.1 8.8 https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/
ssvc Track* https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2022-31115
https://github.com/opensearch-project/opensearch-ruby
https://github.com/opensearch-project/opensearch-ruby/commit/d74a98b45c037671e8819fa87f6a6423458ab08a
https://github.com/opensearch-project/opensearch-ruby/compare/v2.0.1...v2.0.2
https://github.com/opensearch-project/opensearch-ruby/pull/77
https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/opensearch-ruby/CVE-2022-31115.yml
https://nvd.nist.gov/vuln/detail/CVE-2022-31115
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/
GHSA-977c-63xq-cgw3 https://github.com/advisories/GHSA-977c-63xq-cgw3
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/opensearch-project/opensearch-ruby
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/opensearch-project/opensearch-ruby/commit/d74a98b45c037671e8819fa87f6a6423458ab08a
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/opensearch-project/opensearch-ruby/compare/v2.0.1...v2.0.2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/opensearch-project/opensearch-ruby/pull/77
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2025-04-22T15:42:50Z/ Found at https://github.com/opensearch-project/opensearch-ruby/pull/77
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2025-04-22T15:42:50Z/ Found at https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/opensearch-ruby/CVE-2022-31115.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-31115
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2025-04-22T15:42:50Z/ Found at https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/
Exploit Prediction Scoring System (EPSS)
Percentile 0.63757
EPSS Score 0.00445
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:14:50.536531+00:00 Ruby Importer Import https://github.com/rubysec/ruby-advisory-db/blob/master/gems/opensearch-ruby/CVE-2022-31115.yml 38.6.0