{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-81526 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-81526 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-81526 is a high-severity vulnerability in MongoDB Rust Driver, published on 27 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-2026-81526 and fix it if it is affected.\n\nWhat it is: CVE-2026-81526 is a high-severity vulnerability in MongoDB Rust Driver, published on 27 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-2026-81526 in the wild and no public exploit code.\n\nAffected product: MongoDB Rust 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-2026-81526/ (Markdown: https://insights.sbomify.com/CVE-2026-81526/index.md)","id":"CVE-2026-81526","markdown":"https://insights.sbomify.com/CVE-2026-81526/index.md","name":"CVE-2026-81526","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"MongoDB Rust Driver","requires_auth":"low_privilege","summary":"Attackers can redirect bulk write operations to unintended databases by manipulating dotted names, leading to unauthorized data modification.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mongodb","cpe":[{"product":"rust_driver","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:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"The MongoDB Rust Driver does not neutralize special characters in a caller-supplied target identifier before embedding it in the request it sends to the server. An actor able to influence that identifier in an application using the driver may cause write operations to be applied to an unintended target within the same deployment using the application's own credentials. This may result in unauthorized modification of data belonging to another logical boundary enforced by the application.","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-database write redirection via unvalidated dotted database name in bulk write namespaces","id":"CVE-2026-81526","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"NoSQL injection via unquoted constant GroupBy keys in LINQ pipeline translation","id":"CVE-2026-81527"},"packages":[],"prev":{"headline":"Cross-tenant database retargeting via dot/NUL injection in namespace strings in the PHP Driver","id":"CVE-2026-81525"},"products":["Rust Driver"],"published":"2026-08-27","related":[{"cvss_score":8,"headline":"Configuration may unexpectedly disable certificate validation","id":"CVE-2025-11695","kev_date_added":null,"published":"2025-10-13"},{"cvss_score":6.4,"headline":"Adversarial unsanitized input may cause MongoDB Rust Driver to issue unintended commands.","id":"CVE-2024-6382","kev_date_added":null,"published":"2024-07-02"},{"cvss_score":6.1,"headline":"GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Rust Driver","id":"CVE-2026-88024","kev_date_added":null,"published":"2026-09-10"},{"cvss_score":4.2,"headline":"Exposure of Sensitive Information to an Unauthorized Actor in MongoDB Rust Driver","id":"CVE-2021-20332","kev_date_added":null,"published":"2021-08-02"}],"sources":[{"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":"2026-08-28","vendors":["MongoDB"]},"summary":"Attackers can redirect bulk write operations to unintended databases by manipulating dotted names, leading to unauthorized data modification.","url":"https://insights.sbomify.com/CVE-2026-81526/"}