{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-18636 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-18636 is a medium-severity path traversal vulnerability in Rapid7 Velociraptor, published on 11 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-18636 and fix it if it is affected.\n\nWhat it is: CVE-2026-18636 is a medium-severity path traversal vulnerability in Rapid7 Velociraptor, published on 11 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-18636 in the wild and no public exploit code.\n\nAffected product: Rapid7 Velociraptor. 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-2026-18636/ (Markdown: https://insights.sbomify.com/CVE-2026-18636/index.md)","id":"CVE-2026-18636","markdown":"https://insights.sbomify.com/CVE-2026-18636/index.md","name":"CVE-2026-18636","record":{"aliases":["GHSA-96p2-wv27-6pfj"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Velociraptor DFIR platform","requires_auth":"high_privilege","summary":"Attackers can bypass path restrictions in the VFSGetBuffer API to read sensitive files or access data from other organizations.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"rapid7","cpe":[],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-288","name":"Authentication Bypass Using an Alternate Path or Channel"}],"description":"The Velociraptor gRPC API has a VFSGetBuffer endpoint which allows reading files from the datastore. To prevent users from reading sensitive files or accessing other orgs, the requested path is prefix checked against a list of denied prefixes. This prefix check can be bypassed allowing a user to access usually denied files. If the user has read permission in the ROOT org, this allows access to other orgs, in which the user may not have permission.","ecosystems":[],"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":"Velociraptor VFSGetBuffer API path deny list bypass","id":"CVE-2026-18636","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Velociraptor server crash via the SetPassword API","id":"CVE-2026-18638"},"packages":[],"prev":{"headline":"Velociraptor query plugin allows impersonation in other orgs","id":"CVE-2026-18635"},"products":["Velociraptor"],"published":"2026-08-11","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":"2026-08-11","vendors":["Rapid7"]},"summary":"Attackers can bypass path restrictions in the VFSGetBuffer API to read sensitive files or access data from other organizations.","url":"https://insights.sbomify.com/CVE-2026-18636/"}