CVE-2026-63393
OpenSearch SQL plugin: Unsafe cursor deserialization permits server code execution
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-502 |
| Vendor | opensearch-project |
| Product | sql |
| Published | Oct 30, 2026 |
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Affected Versions
opensearch-project / sql
>= 2.8.0.0, < 2.19.6.0 >= 3.0.0.0-alpha1, < 3.7.0.0
References
github.com: https://github.com/opensearch-project/sql/security/advisories/GHSA-r8cv-xvqm-4qj4 github.com: https://github.com/opensearch-project/sql/pull/5469 github.com: https://github.com/opensearch-project/sql/pull/5572 github.com: https://github.com/opensearch-project/sql/commit/402a284f1dff3545236480b67f860aa93fb667de github.com: https://github.com/opensearch-project/sql/commit/9ab50384d3ad571a14211415fba2f6d26d4c80db github.com: https://github.com/opensearch-project/sql/releases/tag/2.19.6.0 github.com: https://github.com/opensearch-project/sql/releases/tag/3.7.0.0