CVE-2026-54092: medium-severity vulnerability in filebrowser
File Browser: DoS Vulnerability on Public Login API
Published · Updated
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6.5epss 0.5%
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, unchecked passwords maximums allow for an arbitrarily large password to be passed into the login API. This spikes CPU and memory, and after testing, crashes, heavily lags any container created, and has even made my docker daemon start to send errors with status code 500 even after the container was destroyed. This vulnerability is fixed in 2.63.6.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
filebrowser · filebrowserpublic PoCs found — 1
cve_referencevincent.vulcoord.net/score/?state=Not+Scored&year=2026&year=2025&assigned_to=a165dae3-480e-4f7d-bbb8-9b1d78115b69&cve=CVE-2026-54092&analyze=1unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — filebrowser
In the same product, most dangerous first.
CVE-2026-35585HIGHFile Browser has a Command Injection via Hook RunnerEPSS 2.0%CVE-2026-32759MEDIUMFile Browser TUS Negative Upload-Length Fires Post-Upload Hooks PrematurelyEPSS 2.0%CVE-2025-52903HIGHFile Browser Allows Execution of Shell Commands That Can Spawn Other CommandsEPSS 1.2%CVE-2025-52904HIGHFile Browser: Command Execution not Limited to ScopeEPSS 1.1%CVE-2026-54088CRITICALFile Browser: Command Injection via Authentication Hook Shell Substitution (Pre-Authentication RCE)EPSS 0.8%CVE-2026-32760CRITICALFile Browser Self Registration Grants Any User Admin Access When Default Permissions Include AdminEPSS 0.7%
References
https://github.com/filebrowser/filebrowser/commit/847d08bdd135e5c3659f2e6dea2f0cd36617af9bhttps://github.com/filebrowser/filebrowser/releases/tag/v2.63.6https://github.com/filebrowser/filebrowser/security/advisories/GHSA-w5fm-68j4-fpc4https://vincent.vulcoord.net/score/?state=Not+Scored&year=2026&year=2025&assigned_to=a165dae3-480e-4f7d-bbb8-9b1d78115b69&cve=CVE-2026-54092&analyze=1