{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-118581 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-118581 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-118581 is a medium-severity vulnerability in MongoDB Java Driver, published on 28 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-118581 and fix it if it is affected.\n\nWhat it is: CVE-2026-118581 is a medium-severity vulnerability in MongoDB Java Driver, published on 28 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-118581 in the wild and no public exploit code.\n\nAffected product: MongoDB Java 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-2026-118581/ (Markdown: https://insights.sbomify.com/CVE-2026-118581/index.md)","id":"CVE-2026-118581","markdown":"https://insights.sbomify.com/CVE-2026-118581/index.md","name":"CVE-2026-118581","record":{"aliases":["DEBIAN-CVE-2026-118581"],"analysis":null,"analysis_generated_by":null,"assigner":"mongodb","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-943","name":"Improper Neutralization of Special Elements in Data Query Logic"}],"description":"A BSON encoding component of the MongoDB Java Driver does not verify that an externally supplied raw document's self-declared length agrees with the extent of the byte range it is given before that range is copied into an outgoing database command. An application that wraps untrusted raw bytes in such a document and uses it as part of a command can therefore emit a structurally inconsistent message, causing the database to interpret attacker-supplied trailing content as additional fields of the surrounding command. No authentication to the driver or database is required beyond the ability to influence those bytes through the victim application, and no user interaction is needed. The result is unintended modification of the command actually executed, which can alter the data read or written under the application's credentials.","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":"NoSQL injection via mismatched BSON size prefix in raw document splice to the wire protocol","id":"CVE-2026-118581","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"configuroweb inventariobasico Add Product addlist.php cross site scripting","id":"CVE-2026-118585"},"packages":[],"prev":{"headline":"D-Link DIR-505 Web Management CGI secmark1524.cgi main backdoor","id":"CVE-2026-118579"},"products":["Java Driver"],"published":"2026-10-28","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":"2026-10-28","vendors":["MongoDB"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-118581/"}