{"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-2026-54090 exists.","fix":"Upgrade github.com/filebrowser/filebrowser/v2 to 2.33.8 or later.","what":"CVE-2026-54090 is a high-severity command injection vulnerability in filebrowser, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54090 and fix it if it is affected.\n\nWhat it is: CVE-2026-54090 is a high-severity command injection vulnerability in filebrowser, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54090 exists.\n\nAffected packages and fixed versions:\n- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.8\n- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.8\n- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.8\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-2026-54090/ (Markdown: https://insights.sbomify.com/CVE-2026-54090/index.md)","id":"CVE-2026-54090","markdown":"https://insights.sbomify.com/CVE-2026-54090/index.md","name":"CVE-2026-54090","record":{"aliases":["GHSA-8c9q-7855-wfxq","GO-2026-5250"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"File Browser","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary commands by injecting shell metacharacters when a shell interpreter is configured, bypassing the command allowlist.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command"},{"id":"CWE-184","name":"Incomplete List of Disallowed Inputs"}],"description":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.33.8, when a shell interpreter is configured (e.g. /bin/sh -c), the command allowlist can be bypassed through shell metacharacters. The allowlist validates only the first token of user input, but the entire raw string is handed to the shell — semicolons, pipes, backticks, and $() all work to chain arbitrary commands after a permitted one. This vulnerability is fixed in 2.33.8.","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: Command Allowlist Bypass via Shell Metacharacter Injection","id":"CVE-2026-54090","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"File Browser: Incorrect access control in public directory shares via rule path rebasing","id":"CVE-2026-54091"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser","purl":"pkg:golang/github.com/filebrowser/filebrowser","source":"GO-2026-5250"},{"ecosystem":"Go","fixed":["2.33.8"],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":null,"source":"GHSA-8c9q-7855-wfxq"},{"ecosystem":"Go","fixed":["2.33.8"],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","source":"GHSA-8c9q-7855-wfxq"},{"ecosystem":"Go","fixed":["2.33.8"],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","source":"GO-2026-5250"}],"prev":{"headline":"File Browser: Authentication Bypass via Proxy Auth Header Forgery","id":"CVE-2026-54089"},"products":["filebrowser"],"published":"2026-06-25","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":"total"},"state":"PUBLISHED","updated":"2026-06-26","vendors":["filebrowser"]},"summary":"Attackers can execute arbitrary commands by injecting shell metacharacters when a shell interpreter is configured, bypassing the command allowlist.","url":"https://insights.sbomify.com/CVE-2026-54090/"}