# CVE-2023-23933: Issue in Anomaly Detection with document and field level rules in numerical feature aggregations

> Authenticated users with the Anomaly Detector role can bypass field-level restrictions to read aggregated numerical data from restricted indexes.

- **Severity:** Medium 5.7 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Feb 2023
- **Updated:** 10 Mar 2025
- **Also known as:** GHSA-47qw-jwpx-pp4c

## What is CVE-2023-23933?

CVE-2023-23933 is a medium-severity missing authorization vulnerability in opensearch-project anomaly-detection, published on 3 Feb 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

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.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2023-23933?

It affects 1 product.


Products: Amazon Opensearch.

## How do I fix CVE-2023-23933?

No fix has been published for CVE-2023-23933 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23933 being exploited?

There is no known exploitation of CVE-2023-23933 in the wild and no public exploit code.

## Other vulnerabilities in opensearch-project anomaly-detection

- [CVE-2022-31115](https://insights.sbomify.com/CVE-2022-31115/): Unsafe YAML deserialization in opensearch-ruby (high 8.8)
- [CVE-2025-9624](https://insights.sbomify.com/CVE-2025-9624/): OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS (high 8.3)
- [CVE-2022-35980](https://insights.sbomify.com/CVE-2022-35980/): OpenSearch vulnerable to Improper Authorization of Index Containing Sensitive Information (high 7.5)
- [CVE-2022-41918](https://insights.sbomify.com/CVE-2022-41918/): Issue with fine-grained access control of indices backing data streams (medium 6.3)
- [CVE-2023-23613](https://insights.sbomify.com/CVE-2023-23613/): Field-level security issue with .keyword fields in OpenSearch (medium 5.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23933 and fix it if it is affected.

What it is: CVE-2023-23933 is a medium-severity missing authorization vulnerability in opensearch-project anomaly-detection, published on 3 Feb 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-23933 in the wild and no public exploit code.

Affected product: opensearch-project anomaly-detection. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-23933/ (Markdown: https://insights.sbomify.com/CVE-2023-23933/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23933
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23933
- OSV: https://osv.dev/vulnerability/CVE-2023-23933

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23933/
Summaries are generated and may contain mistakes; the official description above is the record.