{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-54587 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-54587 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-54587 is a medium-severity path traversal vulnerability in MidnightBSD mport, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54587 and fix it if it is affected.\n\nWhat it is: CVE-2026-54587 is a medium-severity path traversal vulnerability in MidnightBSD mport, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-54587 in the wild and no public exploit code.\n\nAffected product: MidnightBSD mport. 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-2026-54587/ (Markdown: https://insights.sbomify.com/CVE-2026-54587/index.md)","id":"CVE-2026-54587","markdown":"https://insights.sbomify.com/CVE-2026-54587/index.md","name":"CVE-2026-54587","record":{"aliases":["GHSA-f69w-h3gh-r86p"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"MidnightBSD package manager","requires_auth":"low_privilege","summary":"A local attacker can exploit race conditions and path traversal in mport to modify files outside intended directories during privileged package installation.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-59","name":"Improper Link Resolution Before File Access"},{"id":"CWE-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition"}],"description":"mport is the MidnightBSD Package Manager. Prior to 2.7.8, directory assets handled as ASSET_DIR or ASSET_DIR_OWNER_MODE in libmport/bundle_read_install_pkg.c used path-based mport_mkdirp(), ownership, and permission operations. A local attacker able to modify part of the target installation tree could use dot-dot traversal or substitute symlinks during privileged package installation, causing directory creation or attribute changes to affect attacker-selected paths outside the intended package directories. This issue is fixed in version 2.7.8.","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":"mport directory asset installation is vulnerable to symlink and path traversal races","id":"CVE-2026-54587","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Poweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction.","id":"CVE-2026-54588"},"packages":[],"prev":{"headline":"mport permits repository and package mirror fetches over insecure transport","id":"CVE-2026-54586"},"products":["mport"],"published":"2026-09-17","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":"2026-09-17","vendors":["MidnightBSD"]},"summary":"A local attacker can exploit race conditions and path traversal in mport to modify files outside intended directories during privileged package installation.","url":"https://insights.sbomify.com/CVE-2026-54587/"}