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CVE-2026-63393high8.7

OpenSearch SQL plugin: Unsafe cursor deserialization permits server code execution

Impact

OpenSearch SQL plugin versions 2.8.0.0 to 2.19.6.0 and 3.0.0.0-alpha1 to 3.7.0.0 are affected by unsafe cursor deserialization, allowing authenticated users with basic read/search permissions to trigger arbitrary code execution. The weakness is deserialization of untrusted data. This issue is fixed in releases 2.19.6.0 and 3.7.0.0.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

opensearch-project · GitHub_M

sql

2 ranges
GitHub_M version evidence

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affected

>= 2.8.0.0, < 2.19.6.0

>= 3.0.0.0-alpha1, < 3.7.0.0

unaffected

unknown

Other versions: unknown

Original source 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.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-63393

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

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Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-502 ↗

CWE-502: Deserialization of Untrusted Data

GitHub_M

Related →
Contributing organizations · 1
GitHub_M

Assigning organization

2026-10-30

What changed

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References

7 sources
github.com/opensearch-project/sql/security/advisories/GHSA-r8cv-xvqm-4qj4
Security advisoryGitHub_M
github.com/opensearch-project/sql/pull/5469
PatchGitHub_M
github.com/opensearch-project/sql/pull/5572
PatchGitHub_M
github.com/opensearch-project/sql/commit/402a284f1dff3545236480b67f860aa93fb667de
PatchGitHub_M
github.com/opensearch-project/sql/commit/9ab50384d3ad571a14211415fba2f6d26d4c80db
PatchGitHub_M
github.com/opensearch-project/sql/releases/tag/2.19.6.0
Release notesGitHub_M
View 1 more references
github.com/opensearch-project/sql/releases/tag/3.7.0.0
Release notesGitHub_M