{"answers":{"affected":"1 open source package ship an affected version, including elasticsearch. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-63140 in the wild and no public exploit code.","fix":"Upgrade elasticsearch to a fixed version for your release line: 8.19.19, 9.3.8 or 9.4.4.","what":"CVE-2026-63140 is a medium-severity denial of service vulnerability in Elastic Elasticsearch, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-63140 and fix it if it is affected.\n\nWhat it is: CVE-2026-63140 is a medium-severity denial of service vulnerability in Elastic Elasticsearch, published on 21 Jul 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-2026-63140 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- elasticsearch (Bitnami): affected from 8.0.0; fixed in 8.19.19, 9.3.8, 9.4.4\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-2026-63140/ (Markdown: https://insights.sbomify.com/CVE-2026-63140/index.md)","id":"CVE-2026-63140","markdown":"https://insights.sbomify.com/CVE-2026-63140/index.md","name":"CVE-2026-63140","record":{"aliases":["BIT-elasticsearch-2026-63140","CLEANSTART-2026-PM70424","CLEANSTART-2026-ZU18134","GHSA-h663-9fgh-w7xf","MINI-26v7-69j8-6fc4","MINI-2c2w-w7v6-qhh9","MINI-3gx2-r9j2-xh9q","MINI-45wj-4j8q-jrx8","MINI-6592-m6wq-5rcw","MINI-6884-fvf4-37vm","MINI-7vww-85rx-2j6r","MINI-9p82-7f9v-qfp4","MINI-fhhr-x47v-3m4c","MINI-fqc4-66fg-qgm5","MINI-fr99-r9jm-433g","MINI-gcr2-9jh8-v864","MINI-h3jf-658m-cw8x","MINI-mvx9-5q5q-rc6f","MINI-p3rc-4mh2-pmj9","MINI-p9xv-29jh-fm47","MINI-ph77-mmmp-qpwq","MINI-rqjm-mjhv-24pv","MINI-vhrc-5948-g4mw","MINI-vmqj-9rh7-q3mg","MINI-xc3q-qcx5-3ppq","MINI-xv5j-g6rr-3cjv"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Elasticsearch search engine","requires_auth":"low_privilege","summary":"A low-privileged user can crash an Elasticsearch node by sending a crafted search request with a null value, causing denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"elastic","cpe":[{"product":"elasticsearch","vendor":"elastic"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"Reachable Assertion (CWE-617) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). A specially crafted search request containing a null value in a specific query clause causes an internal assertion to be raised during query parsing. Because Elasticsearch treats assertion failures as fatal errors, this terminates the affected node process. A low-privileged authenticated user with read access to at least one index can exploit this condition with a single request to cause a node to terminate, disrupting search availability. In a single-node deployment this fully stops Elasticsearch; in a multi-node cluster it reduces cluster capacity for each affected node.","ecosystems":["Bitnami"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Reachable Assertion in Elasticsearch Leading to Denial of Service","id":"CVE-2026-63140","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"elastic:elasticsearch","products":["elastic:elasticsearch"],"type":"denial_of_service","year":"2026"},"n_packages":1,"n_references":1,"next":{"headline":"Missing Authorization in Kibana Leading to Unauthorized Access to Cloud Connect Management Functions","id":"CVE-2026-63141"},"packages":[{"ecosystem":"Bitnami","fixed":["8.19.19","9.3.8","9.4.4"],"introduced":["8.0.0","9.0.0","9.4.0"],"last_affected":[],"package":"elasticsearch","purl":"pkg:bitnami/elasticsearch","source":"BIT-elasticsearch-2026-63140"}],"prev":{"headline":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","id":"CVE-2026-63139"},"products":["Elasticsearch"],"published":"2026-07-21","related":[{"cvss_score":9.8,"headline":"Elasticsearch Groovy Scripting Engine Remote Code Execution","id":"CVE-2015-1427","kev_date_added":"2022-03-25","published":"2015-02-17"},{"cvss_score":8.1,"headline":"Elasticsearch Remote Code Execution","id":"CVE-2014-3120","kev_date_added":"2022-03-25","published":"2014-07-28"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2015-5377","kev_date_added":null,"published":"2018-03-06"},{"cvss_score":8.8,"headline":"Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution","id":"CVE-2026-72649","kev_date_added":null,"published":"2026-09-01"},{"cvss_score":8.8,"headline":"Use of Out-of-range Pointer Offset in the Elasticsearch Machine Learning Native Inference Process","id":"CVE-2026-72642","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.8,"headline":"Privilege Escalation Flaw in Elasticsearch","id":"CVE-2020-7014","kev_date_added":null,"published":"2020-06-03"},{"cvss_score":8.8,"headline":"Improper Privilege Management in Elasticsearch","id":"CVE-2020-7009","kev_date_added":null,"published":"2020-03-31"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-07-22","vendors":["Elastic"]},"summary":"A low-privileged user can crash an Elasticsearch node by sending a crafted search request with a null value, causing denial of service.","url":"https://insights.sbomify.com/CVE-2026-63140/"}