{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-101045 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-101045 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-101045 is a high-severity command injection vulnerability in fleetdm fleet, published on 27 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-101045 and fix it if it is affected.\n\nWhat it is: CVE-2026-101045 is a high-severity command injection vulnerability in fleetdm fleet, published on 27 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-101045 in the wild and no public exploit code.\n\nAffected product: fleetdm fleet. 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-2026-101045/ (Markdown: https://insights.sbomify.com/CVE-2026-101045/index.md)","id":"CVE-2026-101045","markdown":"https://insights.sbomify.com/CVE-2026-101045/index.md","name":"CVE-2026-101045","record":{"aliases":["GHSA-v4vj-w767-q8qv"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Fleet device management","requires_auth":"high_privilege","summary":"Attackers can execute arbitrary commands as root on managed macOS hosts by injecting shell metacharacters into Homebrew cask metadata processed by Fleet.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.9,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"Fleet-maintained app install and uninstall scripts for macOS are generated from Homebrew cask metadata. In manifests generated before 2026-08-19, the script generator escaped this metadata at some interpolation sites but not all of them, so cask metadata containing shell metacharacters (for example $(...) command substitution) could be carried into scripts that execute as root on managed macOS hosts. An attacker who could land crafted metadata in an upstream Homebrew cask — without needing any Fleet credentials — could achieve arbitrary command execution as root on managed macOS hosts that install or uninstall the affected Fleet-maintained app; exploitation required the crafted metadata to pass both upstream Homebrew cask review and Fleet's review of the automated ingestion pull request. The fix (fleetdm/fleet#51324) landed in Fleet's ingestion pipeline on 2026-08-19 so that all manifests generated on or after that date escape cask metadata at every interpolation site; because manifests are generated centrally and distributed as pre-built content, remediation applied to all deployments with no customer action, and the code fix is included in Fleet v4.92.0.","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":"Fleet Homebrew Cask OS Command Injection via Metadata","id":"CVE-2026-101045","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Fleet before 4.89.0 SQL Injection via ORDER BY Activity Endpoints","id":"CVE-2026-101046"},"packages":[],"prev":{"headline":"pacquet before 12.0.0-alpha.5 Path Traversal via lockfile alias","id":"CVE-2026-101044"},"products":["fleet"],"published":"2026-09-27","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":"total"},"state":"PUBLISHED","updated":"2026-09-30","vendors":["fleetdm"]},"summary":"Attackers can execute arbitrary commands as root on managed macOS hosts by injecting shell metacharacters into Homebrew cask metadata processed by Fleet.","url":"https://insights.sbomify.com/CVE-2026-101045/"}