CVE-2023-25806
Time discrepancy in authentication responses in 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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Time discrepancy in authentication responses in 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.
- Record
CVE-2023-25806- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-208
- Updated
- 2026-11-02
EUVDEUVD-2023-0980
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.
- Record
EUVD-2023-0980- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-c6wg-cm5x-rqvj
OpenSearch has time discrepancy in authentication responses
Impact
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
OpenSearch 1.3.9 and 2.6.0
Workarounds
None.
References
If you have any questions or comments about this advisory, please contact AWS/Amazon Security using our issue reporting page [1] or directly via email [2]. Please do not create a public GitHub issue.
[1] AWS Security issue reporting page: https://aws.amazon.com/security/vulnerability-reporting/ [2] AWS Security email: [email protected]
- Record
GHSA-c6wg-cm5x-rqvj- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-203, CWE-208
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2023-25806- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-208, CWE-203
- Updated
- 2026-11-02
OSV
Time discrepancy in authentication responses in 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.
- Record
CVE-2023-25806- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-208
- Updated
- 2026-11-02
OSVGHSA-c6wg-cm5x-rqvj
OpenSearch has time discrepancy in authentication responses
Impact
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
OpenSearch 1.3.9 and 2.6.0
Workarounds
None.
References
If you have any questions or comments about this advisory, please contact AWS/Amazon Security using our issue reporting page [1] or directly via email [2]. Please do not create a public GitHub issue.
[1] AWS Security issue reporting page: https://aws.amazon.com/security/vulnerability-reporting/ [2] AWS Security email: [email protected]
- Record
GHSA-c6wg-cm5x-rqvj- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-203, CWE-208
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.opensearch.plugin:opensearch-securityMaven |
before 1.3.9 | 1.3.9 |
org.opensearch.plugin:opensearch-securityMaven |
2.0.0 up to 2.6.0 | 2.6.0 |
org.opensearch.plugin:opensearch-securityMaven |
2.0.0 up to 2.6.0, plus listed versions 2.1.0.02.2.0.02.2.1.02.3.0.02.4.0.02.4.1.02.5.0.0 |
2.6.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-25806 is a medium vulnerability (CVSS 5.3) in Amazon Opensearch, published March 2, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. Fixed in org.opensearch.plugin:opensearch-security 1.3.9.
References
github.com/opensearch-project/security/security/advisories/GHSA-c6wg-cm5x-rqvj
nvd.nist.gov/vuln/detail/CVE-2023-25806