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Vulnerability record · CVE-2023-25806 · published 2 March 2023

CVE-2023-25806: Amazon opensearch observable discrepancy vulnerability

Amazon · Opensearch

OpenSearch Security is a plugin for OpenSearch that offers encryption, authentication and authorization. There is an observable discrepancy in the authentication response time between calls where the user provided exists and calls where it does not. This issue only affects calls using the internal basic identity provider (IdP), and not other externally configured IdPs. Patches were released in versions 1.3.9 and 2.6.0, there are no workarounds.

5.3 CVSS 3.1 Medium EPSS 0.33% · top 76.7% CWE-208 · CWE-208CWE-203 · Observable discrepancy
5.3CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

OpenSearch Security is a plugin for OpenSearch that offers encryption, authentication and authorization. There is an observable discrepancy in the authentication response time between calls where the user provided exists and calls where it does not. This issue only affects calls using the internal basic identity provider (IdP), and not other externally configured IdPs. Patches were released in versions 1.3.9 and 2.6.0, there are no workarounds.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/opensearch-project/security/security/advisories/GHSA-c6wg-cm5x-rqvj Vendor Advisory
https://github.com/opensearch-project/security/security/advisories/GHSA-c6wg-cm5x-rqvj Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-25806), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.