{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-81524 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-81524 is a medium-severity vulnerability in MongoDB C 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-2026-81524 and fix it if it is affected.\n\nWhat it is: CVE-2026-81524 is a medium-severity vulnerability in MongoDB C 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-2026-81524 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-2026-81524/ (Markdown: https://insights.sbomify.com/CVE-2026-81524/index.md)","id":"CVE-2026-81524","markdown":"https://insights.sbomify.com/CVE-2026-81524/index.md","name":"CVE-2026-81524","record":{"aliases":["DEBIAN-CVE-2026-81524","UBUNTU-CVE-2026-81524","openSUSE-SU-2026:11671-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"MongoDB C Driver","requires_auth":"low_privilege","summary":"Attackers can redirect database operations to unintended resources via unsanitized namespace strings, risking unauthorized data access or modification.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mongodb","cpe":[{"product":"c_driver","vendor":"mongodb"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-99","name":"Improper Control of Resource Identifiers"}],"description":"A weakness in the MongoDB C Driver allows special elements in caller-supplied database and collection name components to pass without sanitization when the driver composes the target namespace for an operation. An application that incorporates untrusted input into these name components can have operations directed at a resource other than the one intended.","ecosystems":["openSUSE:Tumbleweed"],"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":"Cross-tenant database retargeting via dot/NUL injection in namespace strings in the C Driver","id":"CVE-2026-81524","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":1,"n_references":2,"next":{"headline":"Cross-tenant database retargeting via dot/NUL injection in namespace strings in the PHP Driver","id":"CVE-2026-81525"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["2.5.1-1.1"],"introduced":["0"],"last_affected":[],"package":"mongo-c-driver","purl":"pkg:rpm/opensuse/mongo-c-driver\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11671-1"}],"prev":{"headline":"Cross-tenant database retargeting via dot/NUL injection in namespace strings in libmongocrypt","id":"CVE-2026-81523"},"products":["C Driver"],"published":"2026-08-27","related":[{"cvss_score":9.2,"headline":"Heap overflow via oversized decrypted TLS record sequence in Windows Secure Channel stream","id":"CVE-2026-93393","kev_date_added":null,"published":"2026-09-17"},{"cvss_score":8.6,"headline":"MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow","id":"CVE-2026-6691","kev_date_added":null,"published":"2026-05-06"},{"cvss_score":8.2,"headline":"Heap corruption via OCSP request double free from crafted multi-URL certificate in TLS client","id":"CVE-2026-84964","kev_date_added":null,"published":"2026-09-03"},{"cvss_score":7.3,"headline":"Accessing Untrusted Directory May Allow Local Privilege Escalation","id":"CVE-2024-7553","kev_date_added":null,"published":"2024-08-07"},{"cvss_score":6.9,"headline":"Integer Underflow → Heap Out-of-Bounds Read in `bson_new_from_buffer()","id":"CVE-2026-93395","kev_date_added":null,"published":"2026-09-17"},{"cvss_score":6.9,"headline":"Bulk write with options may read invalid memory","id":"CVE-2025-12119","kev_date_added":null,"published":"2025-11-18"},{"cvss_score":6.3,"headline":"libmongoc SCRAM client nonce-validation bypass","id":"CVE-2026-93394","kev_date_added":null,"published":"2026-09-17"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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 database operations to unintended resources via unsanitized namespace strings, risking unauthorized data access or modification.","url":"https://insights.sbomify.com/CVE-2026-81524/"}