{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-40538 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-40538 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-40538 is a low-severity vulnerability in Synology DiskStation Manager (DSM), published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40538 and fix it if it is affected.\n\nWhat it is: CVE-2026-40538 is a low-severity vulnerability in Synology DiskStation Manager (DSM), published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-40538 in the wild and no public exploit code.\n\nAffected product: Synology DiskStation Manager (DSM). 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-2026-40538/ (Markdown: https://insights.sbomify.com/CVE-2026-40538/index.md)","id":"CVE-2026-40538","markdown":"https://insights.sbomify.com/CVE-2026-40538/index.md","name":"CVE-2026-40538","record":{"aliases":["GHSA-wprf-f59w-2hpp"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Synology NAS OS","requires_auth":"none","summary":"Attackers can bypass auto-block protections to perform brute-force attacks and read limited files on Synology DSM systems.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"synology","cpe":[],"cvss":{"score":3.7,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-307","name":"Improper Restriction of Excessive Authentication Attempts"}],"description":"An improper restriction of excessive authentication attempts vulnerability in Auto block in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote attackers to read limited files via brute-force attacks.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Security feature bypass in DiskStation Manager (DSM)","id":"CVE-2026-40538","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Security feature bypass in DiskStation Manager (DSM)","id":"CVE-2026-40539"},"packages":[],"prev":{"headline":"Server-side request forgery in DiskStation Manager (DSM)","id":"CVE-2026-40537"},"products":["DiskStation Manager (DSM)"],"published":"2026-09-18","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-18","vendors":["Synology"]},"summary":"Attackers can bypass auto-block protections to perform brute-force attacks and read limited files on Synology DSM systems.","url":"https://insights.sbomify.com/CVE-2026-40538/"}