OpenSearch unauthorized data access on fields protected by field masking for fields of type ip, geo_point, geo_shape, xy_point, xy_shape

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

No dated EPSS signal available.

As published by the source; long descriptions are shortened.

Impact OpenSearch versions 2.19.2 and earlier improperly apply field masking rules on fields of the types ip, geopoint, geoshape, xypoint, xyshape. While the content of these fields is properly redacted in the source document returned by search operations, the original unredacted values remain available to search queries. This allows to reconstruct the original field contents using range queries. Additionally, the content of fields of type geopoint, geoshape, xypoint, xyshape is returned in an unredacted form if requested via the fields option of the search API. Patches The issue has been resolved in OpenSearch 3.0.0 and OpenSearch 2.19.3. Workarounds If you cannot upgrade immediately, you can avoid the problem by using field level security (FLS) protection on fields of the affected types instead of field masking.

Published by the source

1 Aug 2025, 18:15 UTC

Last modified by the source

1 Aug 2025, 18:15 UTC

Source last checked

26 Oct 2026, 16:39 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-rrmm-wq7q-h4v5

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# Patch Next advisory brief: GHSA-rrmm-wq7q-h4v5

Advisory: OpenSearch unauthorized data access on fields protected by field masking for fields of type ip, geo_point, geo_shape, xy_point, xy_shape
IDs: GHSA-rrmm-wq7q-h4v5
Record: https://patchnext.com/advisories/ghsa-rrmm-wq7q-h4v5 (revision 1, source checked 26 Oct 2026, 16:39 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.opensearch.plugin:opensearch-security 2.19.3.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.opensearch.plugin:opensearch-security: affected < 2.19.3.0; fixed in 2.19.3.0

## Suggested inspection (read-only)
- Maven org.opensearch.plugin:opensearch-security: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.opensearch.plugin:opensearch-security.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-rrmm-wq7q-h4v5 (GitHub-reviewed advisory GHSA-rrmm-wq7q-h4v5 lists affected ranges: Maven org.opensearch.plugin:opensearch-security >=0 <2.19.3.0)

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