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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-63393

OpenSearch SQL plugin: Unsafe cursor deserialization permits server code execution

Description

OpenSearch SQL supports querying OpenSearch data using SQL and Piped Processing Language. In the 2.x line from 2.8.0.0 until 2.19.6.0, and the 3.x line prior to 3.7.0.0, a remote authenticated user with basic read/search permissions can provide a crafted `cursor` parameter to the `plugins/sql` endpoint and trigger unsafe deserialization of untrusted data, resulting in arbitrary code execution on the server. This issue is fixed in repository releases 2.19.6.0 and 3.7.0.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

opensearch-project sql

  • >= 2.8.0.0, < 2.19.6.0affected
  • >= 3.0.0.0-alpha1, < 3.7.0.0affected

References