{"answers":{"affected":"1 open source package ship an affected version, including mongodb. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-18687 in the wild and no public exploit code.","fix":"Upgrade mongodb to a fixed version for your release line: 8.0.29, 8.3.8 or 9.0.2.","what":"CVE-2026-18687 is a high-severity denial of service vulnerability in Mongodb Mongodb, published on 11 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-2026-18687 and fix it if it is affected.\n\nWhat it is: CVE-2026-18687 is a high-severity denial of service vulnerability in Mongodb Mongodb, published on 11 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-2026-18687 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- mongodb (Bitnami): affected from 8.0.0; fixed in 8.0.29, 8.3.8, 9.0.2\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-2026-18687/ (Markdown: https://insights.sbomify.com/CVE-2026-18687/index.md)","id":"CVE-2026-18687","markdown":"https://insights.sbomify.com/CVE-2026-18687/index.md","name":"CVE-2026-18687","record":{"aliases":["BIT-mongodb-2026-18687","GHSA-q4pc-c9m4-c873","MINI-8747-94pj-pxw3","MINI-cc4x-m2c9-xfh5","MINI-ph93-q4vh-p3f4","UBUNTU-CVE-2026-18687"],"analysis":{"component_type":"database","fix_type":"patch","impacts":["denial_of_service","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"MongoDB Server","requires_auth":"low_privilege","summary":"An authenticated user can cause server crashes and corrupt encrypted index data by submitting malformed requests during Queryable Encryption maintenance operations.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mongodb","cpe":[{"product":"mongodb","vendor":"mongodb"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"}],"description":"MongoDB Server's handling of a Queryable Encryption maintenance operation did not properly validate certain request parameters against the collection's encrypted field configuration before use. An authenticated user with readWrite privileges could submit a specially formed request that leads to a server crash or excessive internal writes, resulting in resource exhaustion and corruption of encrypted index data.","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":"Denial of service in MongoDB Server","id":"CVE-2026-18687","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"mongodb:mongodb","products":["mongodb:mongodb"],"type":"denial_of_service","year":"2026"},"n_packages":1,"n_references":1,"next":{"headline":"Out-of-Bounds Read in MongoDB Aggregation Framework Leads to Denial of Service and Potential Memory Disclosure","id":"CVE-2026-18688"},"packages":[{"ecosystem":"Bitnami","fixed":["8.0.29","8.3.8","9.0.2"],"introduced":["8.0.0","8.2.0","9.0.0"],"last_affected":[],"package":"mongodb","purl":"pkg:bitnami/mongodb","source":"BIT-mongodb-2026-18687"}],"prev":{"headline":"GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection","id":"CVE-2026-18686"},"products":["MongoDB Server"],"published":"2026-08-11","related":[{"cvss_score":8.7,"headline":"MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency","id":"CVE-2025-14847","kev_date_added":"2025-12-29","published":"2025-12-19"},{"cvss_score":9.2,"headline":"Auth bypass in MongoDB Server","id":"CVE-2026-82067","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":9.2,"headline":"MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory Corruption","id":"CVE-2026-13072","kev_date_added":null,"published":"2026-07-22"},{"cvss_score":9.1,"headline":"Denial of service in n/a","id":"CVE-2017-15535","kev_date_added":null,"published":"2017-11-01"},{"cvss_score":9,"headline":"Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure","id":"CVE-2026-18691","kev_date_added":null,"published":"2026-08-11"},{"cvss_score":8.8,"headline":"MongoDB Server may allow successful untrusted connection","id":"CVE-2024-1351","kev_date_added":null,"published":"2024-03-07"},{"cvss_score":8.7,"headline":"Denial of service in MongoDB Server","id":"CVE-2026-82064","kev_date_added":null,"published":"2026-09-08"}],"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":"2026-08-11","vendors":["MongoDB"]},"summary":"An authenticated user can cause server crashes and corrupt encrypted index data by submitting malformed requests during Queryable Encryption maintenance operations.","url":"https://insights.sbomify.com/CVE-2026-18687/"}