CVE-2023-25806

Time discrepancy in authentication responses in OpenSearch

MEDIUM

5.3

CVSS Score

Published: March 2, 2023 at 03:04 AM UTC

Updated: June 17, 2026 at 05:42 AM UTC

3 products affected across 2 vendorsOpensearchOpensearch SecurityOpenSearch

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Severity

MEDIUM5.3

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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.

Affected

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

Opensearch · Amazonmaven

95%

v < 1.3.92.0.0 ≤ v < 2.6.0

Affected range stops below 1.3.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.0, so it looks safe — our inference, not a vendor statement

Opensearch Security · Amazon

95%

v < 1.3.92.0.0 ≤ v < 2.6.0

Affected range stops below 1.3.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.0, so it looks safe — our inference, not a vendor statement

OpenSearch · Opensearch

60%

v < 1.3.9v < 2.6.0

Affected range stops below 1.3.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.0, 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-c6wg-cm5x-rqvj

References (1)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

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

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

5.3MEDIUM[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-208CWE-203

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