What is CVE-2026-57489?

CVE-2026-57489 is a high-severity vulnerability in Error311 Filerise, classified under Authentication Bypass by Spoofing. CVSS score: 8.1/10. Published 2026-10-14.

How severe is CVE-2026-57489?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Error311 Filerise

CVE-2026-57489

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.

Published 2026-10-14 · last modified 2026-10-14.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Error311 Filerise — versions < 3.16.0

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

Frequently asked questions

What is CVE-2026-57489?: CVE-2026-57489 is a high-severity vulnerability in Error311 Filerise, classified under Authentication Bypass by Spoofing. CVSS score: 8.1/10. Published 2026-10-14.
How severe is CVE-2026-57489?: High severity. CVSS v3 base score is 8.1 out of 10.