CVE-2023-23613Network attack vector

Restricted-field disclosure via .keyword exclusion bypass

Published Jan 24, 2023 · Updated Mar 10, 2025

Information disclosure in OpenSearch 1.0.0 through 1.3.7 and 2.0.0 through 2.4.1 allows remote authenticated users to read restricted fields. Field-level security and field masking fail to apply explicit field-exclusion rules to some queries that use auto-generated .keyword fields. Exploitation requires authenticated read access to an index containing restricted fields and exposes only data those permissions should hide.

CVSS severity5.7
Medium
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in OpenSearch 1.0.0 through 1.3.7 and 2.0.0 through 2.4.1 allows remote authenticated users to read restricted fields. Field-level security and field masking fail to apply explicit field-exclusion rules to some queries that use auto-generated .keyword fields. Exploitation requires authenticated read access to an index containing restricted fields and exposes only data those permissions should hide.

The record

CVE
CVE-2023-23613
Published
Jan 24, 2023
Updated
Mar 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-200, T1213.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.7GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213.006Data from Databases

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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