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TI-2023-09731 Aliases CVE-2023-23933

Issue in Anomaly Detection with document and field level rules in numerical feature aggregations

Priority LOW 21CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

OpenSearch Anomaly Detection identifies atypical data and receives automatic notifications. There is an issue with the application of document and field level restrictions in the Anomaly Detection plugin, where users with the Anomaly Detector role can read aggregated numerical data (e.g. averages, sums) of fields that are otherwise restricted to them. This issue only affects authenticated users who were previously granted read access to the indexes containing the restricted fields. This issue has been patched in versions 1.3.8 and 2.6.0. There are no known workarounds for this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00512 43rd percentileScored 2026-11-07
Fix Fixed anomaly-detection (opensearch-project): 1.3.8, 2.6.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AWSanomaly-detection1.0.0 to before 1.3.8; 2.0.0 to before 2.6.01.3.8, 2.6.0Patch availableCNA
  • anomaly-detection VendorAWS Affected 1.0.0 to before 1.3.8; 2.0.0 to before 2.6.0 Fixed in 1.3.8, 2.6.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:amazon:opensearch:*:*:*:*:*:docker:*:*1.0.0 to before 1.3.8; 2.0.0 to before 2.6.0VulnerableAWS
  • cpe:2.3:a:amazon:opensearch:*:*:*:*:*:docker:*:* Versions 1.0.0 to before 1.3.8; 2.0.0 to before 2.6.0 Vulnerable ·AWS

Remediation

  • Fix · CNA anomaly-detection (opensearch-project) Fixed in 1.3.8, 2.6.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-23933

References

Advisory 1

  • TI-2022-13159 Unsafe YAML deserialization in opensearch-ruby CVSS 3.1HIGH 8.8
  • TI-2025-08817 OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS CVSS 4.0HIGH 8.3
  • TI-2022-16405 OpenSearch vulnerable to Improper Authorization of Index Containing Sensitive Information CVSS 3.1HIGH 7.5
  • TI-2023-09441 Issue with whitespace in JWT roles in OpenSearch CVSS 3.1HIGH 8.8
  • TI-2023-11077 Time discrepancy in authentication responses in OpenSearch CVSS 3.1MEDIUM 5.3
  • TI-2023-09442 Field-level security issue with .keyword fields in OpenSearch CVSS 3.1MEDIUM 6.5
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences