{"cve":"CVE-2026-54090","nvd":{"published":"2026-06-25T19:16:40.980","modified":"2026-06-26T16:16:32.250","status":"Deferred","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.","cvss_v4":{"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","score":8.7},"cvss_v3":null,"cwes":["CWE-77","CWE-184"],"references":["https://github.com/filebrowser/filebrowser/issues/5199","https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8c9q-7855-wfxq","https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8c9q-7855-wfxq"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:41:17.107060303+00:00"},"epss":{"cve":"CVE-2026-54090","score":0.00437,"percentile":0.38,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-8c9q-7855-wfxq","url":"https://osv.dev/vulnerability/GHSA-8c9q-7855-wfxq","summary":"File Browser has a Command Execution Allowlist Bypass via Shell Metacharacter Injection","modified":"2026-07-21T14:00:36.984809983Z","packages":[{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","ranges":["<2.33.8"],"fixed":["2.33.8"]}]},{"id":"GO-2026-5250","url":"https://osv.dev/vulnerability/GO-2026-5250","summary":"File Browser has a Command Execution Allowlist Bypass via Shell Metacharacter Injection in github.com/filebrowser/filebrowser","modified":"2026-06-25T19:45:20.576716834Z","packages":[{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser","purl":"pkg:golang/github.com/filebrowser/filebrowser","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","ranges":["<2.33.8"],"fixed":["2.33.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}