{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-114651 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-114651 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-114651 is a medium-severity vulnerability in MongoDB C# Driver, published on 22 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-114651 and fix it if it is affected.\n\nWhat it is: CVE-2026-114651 is a medium-severity vulnerability in MongoDB C# Driver, published on 22 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-114651 in the wild and no public exploit code.\n\nAffected product: MongoDB C# Driver. 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-2026-114651/ (Markdown: https://insights.sbomify.com/CVE-2026-114651/index.md)","id":"CVE-2026-114651","markdown":"https://insights.sbomify.com/CVE-2026-114651/index.md","name":"CVE-2026-114651","record":{"aliases":["GHSA-f8xm-c88f-wq46"],"analysis":null,"analysis_generated_by":null,"assigner":"mongodb","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-908","name":"Use of Uninitialized Resource"}],"description":"A memory-handling weakness in the BSON deserialization component of the MongoDB C# Driver may cause data left over from previously processed content to be returned when specially crafted serialized input is parsed. An unauthenticated party able to supply serialized data to an application that maps certain primitive collection types can cause residual bytes from unrelated data processed earlier on the same execution thread to be surfaced as legitimate values. This can result in disclosure of a limited amount of information belonging to other requests or principals of the consuming application. No authentication or special privileges within the application are required.","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":"Cross-document data leak via malformed BSON array parsing in reused thread buffer","id":"CVE-2026-114651","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Update operator injection via single-element list rewriting in the update builder","id":"CVE-2026-114652"},"packages":[],"prev":{"headline":"Plaintext exposure of encrypted fields via ANSI code-page corruption of database name","id":"CVE-2026-114650"},"products":["C# Driver"],"published":"2026-10-22","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-22","vendors":["MongoDB"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-114651/"}