{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-18428 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-18428 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18428 is a high-severity code injection vulnerability in AWS Opensearch, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-18428 and fix it if it is affected.\n\nWhat it is: CVE-2026-18428 is a high-severity code injection vulnerability in AWS Opensearch, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-18428 in the wild and no public exploit code.\n\nAffected product: AWS Opensearch. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-18428/ (Markdown: https://insights.sbomify.com/CVE-2026-18428/index.md)","id":"CVE-2026-18428","markdown":"https://insights.sbomify.com/CVE-2026-18428/index.md","name":"CVE-2026-18428","record":{"aliases":["GHSA-3rvx-fcj6-wr45","GHSA-g4jr-343c-fvjm"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenSearch SQL plugin","requires_auth":"low_privilege","summary":"Remote authenticated attackers can execute arbitrary code on Spark workers by bypassing SQL validation in the OpenSearch Flint extension.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMZN","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"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"},"cwes":[{"id":"CWE-693","name":"Protection Mechanism Failure"}],"description":"A SQL query validation bypass in the Flint extension query handler in the OpenSearch SQL plugin allows a remote authenticated actor with async query access to execute arbitrary code on Apache Spark workers by sending a crafted SQL query to the direct query endpoint.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"SQL Query Validation Bypass in OpenSearch Direct Query","id":"CVE-2026-18428","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"HumHub 1.18.4 - Stored XSS in comment-deletion notifications through unescaped administrator reason","id":"CVE-2026-18430"},"packages":[],"prev":{"headline":"@fastify/static vulnerable to route guard bypass via non-canonical path segments","id":"CVE-2026-18427"},"products":["Opensearch"],"published":"2026-08-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-13","vendors":["AWS","Github"]},"summary":"Remote authenticated attackers can execute arbitrary code on Spark workers by bypassing SQL validation in the OpenSearch Flint extension.","url":"https://insights.sbomify.com/CVE-2026-18428/"}