{"answers":{"affected":"2 open source packages ship an affected version, including kibana and elk. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-42399 in the wild and no public exploit code.","fix":"Upgrade kibana to a fixed version for your release line: 8.19.16 or 9.3.5.","what":"CVE-2026-42399 is a medium-severity denial of service vulnerability in Elastic Kibana, published on 28 May 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-42399 and fix it if it is affected.\n\nWhat it is: CVE-2026-42399 is a medium-severity denial of service vulnerability in Elastic Kibana, published on 28 May 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-2026-42399 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- kibana (Bitnami): affected from 8.0.0; fixed in 8.19.16, 9.3.5\n- elk (Bitnami): affected from 8.0.0; fixed in 8.19.16, 9.3.5\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-2026-42399/ (Markdown: https://insights.sbomify.com/CVE-2026-42399/index.md)","id":"CVE-2026-42399","markdown":"https://insights.sbomify.com/CVE-2026-42399/index.md","name":"CVE-2026-42399","record":{"aliases":["BIT-elk-2026-42399","BIT-kibana-2026-42399","GHSA-hcw2-vpp7-52v9","MINI-7mr6-865c-p2j2","MINI-gpc9-9hqp-g2qp","MINI-h387-chfw-6vhj","MINI-m6qp-4qcm-j87v","MINI-mmhp-hf79-64pq","MINI-vrp6-99jr-7773"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Kibana visualization tool","requires_auth":"low_privilege","summary":"An authenticated low-privileged user can crash Kibana by submitting a crafted Timelion expression that causes excessive memory consumption.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"elastic","cpe":[{"product":"kibana","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-400","name":"Uncontrolled Resource Consumption"}],"description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated low-privileged user can cause Kibana to consume exponentially increasing amounts of memory by submitting a specially crafted Timelion visualization expression containing deeply chained function calls. The resulting data structure grows without bound, exhausting available memory and causing the Kibana service to crash and become unavailable to all users.","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":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","id":"CVE-2026-42399","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"elastic:kibana","products":["elastic:kibana"],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","id":"CVE-2026-42400"},"packages":[{"ecosystem":"Bitnami","fixed":["8.19.16","9.3.5"],"introduced":["8.0.0","9.0.0"],"last_affected":[],"package":"elk","purl":"pkg:bitnami/elk","source":"BIT-elk-2026-42399"},{"ecosystem":"Bitnami","fixed":["8.19.16","9.3.5"],"introduced":["8.0.0","9.0.0"],"last_affected":[],"package":"kibana","purl":"pkg:bitnami/kibana","source":"BIT-kibana-2026-42399"}],"prev":{"headline":"Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access","id":"CVE-2026-42398"},"products":["Kibana"],"published":"2026-05-28","related":[{"cvss_score":9.8,"headline":"Kibana Arbitrary Code Execution","id":"CVE-2019-7609","kev_date_added":"2022-01-10","published":"2019-03-25"},{"cvss_score":9.9,"headline":"Kibana arbitrary code execution via prototype pollution","id":"CVE-2025-25015","kev_date_added":null,"published":"2025-03-05"},{"cvss_score":9.9,"headline":"Deserialization in Kibana","id":"CVE-2024-37288","kev_date_added":null,"published":"2024-09-09"},{"cvss_score":9.9,"headline":"Code injection in Kibana","id":"CVE-2023-31415","kev_date_added":null,"published":"2023-05-04"},{"cvss_score":9.8,"headline":"Information disclosure in Kibana","id":"CVE-2018-17245","kev_date_added":null,"published":"2018-12-20"},{"cvss_score":9.8,"headline":"Code injection in Kibana","id":"CVE-2018-17246","kev_date_added":null,"published":"2018-12-20"},{"cvss_score":9.1,"headline":"Kibana arbitrary code execution via prototype pollution","id":"CVE-2025-25014","kev_date_added":null,"published":"2025-05-06"}],"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":"2026-05-29","vendors":["Elastic"]},"summary":"An authenticated low-privileged user can crash Kibana by submitting a crafted Timelion expression that causes excessive memory consumption.","url":"https://insights.sbomify.com/CVE-2026-42399/"}