CVE-2026-57489Public exploitNetwork attack vectorHinoki check available

Authentication bypass via unchecked proxy-header source

Published Oct 14, 2026 · Updated Oct 14, 2026

Authentication bypass in FileRise before 3.16.0 allows remote attackers to gain administrator access through proxy-header login. The AUTH_BYPASS block in config/config.php creates a session from the identity header without validating the request source against FR_TRUSTED_PROXIES. Exploitation requires enabled proxy-header authentication and an untrusted path to the backend, granting the asserted account's access without password or MFA verification.

CVSS severity8.1
High
EPSS probability0.50%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authentication bypass in FileRise before 3.16.0 allows remote attackers to gain administrator access through proxy-header login. The AUTH_BYPASS block in config/config.php creates a session from the identity header without validating the request source against FR_TRUSTED_PROXIES. Exploitation requires enabled proxy-header authentication and an untrusted path to the backend, granting the asserted account's access without password or MFA verification.

The record

CVE
CVE-2026-57489
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
error311
Product
FileRise
Classifications
CWE-290, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.16.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

error311 · FileRiseversion=< 3.16.0

Published CVSS scores

8.1error311CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

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Your stack

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