{"answers":{"affected":"4 open source packages ship an affected version, including github.com/filebrowser/filebrowser/v2 and github.com/filebrowser/filebrowser.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-62843 exists.","fix":"Upgrade github.com/filebrowser/filebrowser/v2 to 2.63.17 or later.","what":"CVE-2026-62843 is a medium-severity path traversal vulnerability in filebrowser, published on 15 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-62843 and fix it if it is affected.\n\nWhat it is: CVE-2026-62843 is a medium-severity path traversal vulnerability in filebrowser, published on 15 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-62843 exists.\n\nAffected packages and fixed versions:\n- github.com/filebrowser/filebrowser/v2 (Go): affected from 2.63.6; fixed in 2.63.17\n- github.com/filebrowser/filebrowser/v2 (Go): affected from 2.63.6; fixed in 2.63.17\n- github.com/filebrowser/filebrowser/v2 (Go): affected from 2.63.6; fixed in 2.63.17\n- github.com/filebrowser/filebrowser (Go): affected all versions; no fix listed\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-2026-62843/ (Markdown: https://insights.sbomify.com/CVE-2026-62843/index.md)","id":"CVE-2026-62843","markdown":"https://insights.sbomify.com/CVE-2026-62843/index.md","name":"CVE-2026-62843","record":{"aliases":["GHSA-83xp-526h-j3ww","GO-2026-6026"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"File Browser","requires_auth":"low_privilege","summary":"An attacker with upload permissions can create files with backslashes that become path traversal entries in archives, allowing arbitrary file write upon extraction.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-23","name":"Relative Path Traversal"},{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAll(nameInArchive, \"\\\", \"/\"), which turns a POSIX filename such as ..\\..\\evil.sh into the archive entry ../../evil.sh, allowing a user with upload permission to plant a backslash-named file that escapes the extraction directory when another user downloads and extracts the generated zip or tar archive. This issue is fixed in version 2.63.17.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"File Browser: Archive builder turns backslash filenames into path traversal (zip-slip)","id":"CVE-2026-62843","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":4,"n_references":3,"next":{"headline":"Kamaji: SQL injection via unescaped datastore identifiers in PostgreSQL/MySQL drivers","id":"CVE-2026-62845"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser","purl":"pkg:golang/github.com/filebrowser/filebrowser","source":"GO-2026-6026"},{"ecosystem":"Go","fixed":["2.63.17"],"introduced":["2.63.6"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":null,"source":"GHSA-83xp-526h-j3ww"},{"ecosystem":"Go","fixed":["2.63.17"],"introduced":["2.63.6"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","source":"GHSA-83xp-526h-j3ww"},{"ecosystem":"Go","fixed":["2.63.17"],"introduced":["2.63.6"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","source":"GO-2026-6026"}],"prev":{"headline":"Microsoft Office Graphics Component Information Disclosure Vulnerability","id":"CVE-2026-62842"},"products":["filebrowser"],"published":"2026-07-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["filebrowser"]},"summary":"An attacker with upload permissions can create files with backslashes that become path traversal entries in archives, allowing arbitrary file write upon extraction.","url":"https://insights.sbomify.com/CVE-2026-62843/"}