{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63393","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-16T17:39:30.171Z","datePublished":"2026-10-30T22:22:05.735Z","dateUpdated":"2026-10-30T22:22:05.735Z"},"containers":{"cna":{"title":"OpenSearch SQL plugin: Unsafe cursor deserialization permits server code execution","problemTypes":[{"descriptions":[{"cweId":"CWE-502","lang":"en","description":"CWE-502: Deserialization of Untrusted Data","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/opensearch-project/sql/security/advisories/GHSA-r8cv-xvqm-4qj4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/opensearch-project/sql/security/advisories/GHSA-r8cv-xvqm-4qj4"},{"name":"https://github.com/opensearch-project/sql/pull/5469","tags":["x_refsource_MISC"],"url":"https://github.com/opensearch-project/sql/pull/5469"},{"name":"https://github.com/opensearch-project/sql/pull/5572","tags":["x_refsource_MISC"],"url":"https://github.com/opensearch-project/sql/pull/5572"},{"name":"https://github.com/opensearch-project/sql/commit/402a284f1dff3545236480b67f860aa93fb667de","tags":["x_refsource_MISC"],"url":"https://github.com/opensearch-project/sql/commit/402a284f1dff3545236480b67f860aa93fb667de"},{"name":"https://github.com/opensearch-project/sql/commit/9ab50384d3ad571a14211415fba2f6d26d4c80db","tags":["x_refsource_MISC"],"url":"https://github.com/opensearch-project/sql/commit/9ab50384d3ad571a14211415fba2f6d26d4c80db"},{"name":"https://github.com/opensearch-project/sql/releases/tag/2.19.6.0","tags":["x_refsource_MISC"],"url":"https://github.com/opensearch-project/sql/releases/tag/2.19.6.0"},{"name":"https://github.com/opensearch-project/sql/releases/tag/3.7.0.0","tags":["x_refsource_MISC"],"url":"https://github.com/opensearch-project/sql/releases/tag/3.7.0.0"}],"affected":[{"vendor":"opensearch-project","product":"sql","versions":[{"version":">= 2.8.0.0, < 2.19.6.0","status":"affected"},{"version":">= 3.0.0.0-alpha1, < 3.7.0.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-30T22:22:05.735Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-r8cv-xvqm-4qj4","discovery":"UNKNOWN"}}}}