CVE-2023-31141

OpenSearch issue with fine-grained access control during extremely rare race conditions

MEDIUM

5.9

CVSS Score

Published: May 8, 2023 at 08:33 PM UTC

Updated: June 17, 2026 at 05:56 AM UTC

3 products affected across 2 vendorsOpensearchOpensearch SecurityOpenSearch

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Severity

MEDIUM5.9

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

OpenSearch is open-source software suite for search, analytics, and observability applications. Prior to versions 1.3.10 and 2.7.0, there is an issue with the implementation of fine-grained access control rules (document-level security, field-level security and field masking) where they are not correctly applied to the queries during extremely rare race conditions potentially leading to incorrect access authorization. For this issue to be triggered, two concurrent requests need to land on the same instance exactly when query cache eviction happens, once every four hours. OpenSearch 1.3.10 and 2.7.0 contain a fix for this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Opensearch · Amazonmaven

95%

v < 1.3.102.0.0 ≤ v < 2.7.0

Affected range stops below 1.3.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.7.0, so it looks safe — our inference, not a vendor statement

Opensearch Security · Amazon

95%

v < 1.3.102.0.0 ≤ v < 2.7.0

Affected range stops below 1.3.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.7.0, so it looks safe — our inference, not a vendor statement

OpenSearch · Opensearch

60%

v < 1.3.10v < 2.7.0

Affected range stops below 1.3.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.7.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://github.com/opensearch-project/security/security/advisories/GHSA-g8xc-6mf7-h28h

References (1)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://github.com/opensearch-project/security/security/advisories/GHSA-g8xc-6mf7-h28h

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: HIGH
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-863

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