CVE-2026-63393 - OpenSearch SQL plugin: Unsafe cursor deserialization permits server code execution

CVE-2026-63393 - OpenSearch SQL plugin: Unsafe cursor deserialization permits server code execution

https://cvefeed.io/rssfeed/latest.atom / Sat, 10/31/2026 - 01:27
CVE ID :CVE-2026-63393
Published : Oct. 30, 2026, 10:22 p.m. | 1 hour, 2 minutes ago
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.
Severity: 0.0 | NA
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