CVE-2026-84307: Filament Password Validity Disclosure For Accounts Vulnerability

LOW
Advisory Identifier: GHSA-xwpv-pqxp-5v36
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CVSS 3.7
CWE-204
Published
Advisory Summary

CVE-2026-84307 is a LOW (CVSS 3.7) password validity disclosure for accounts vulnerability (CWE-204: Observable Response Discrepancy) affecting Filament libraries in the Packagist ecosystem. The issue involves password validity disclosure for accounts denied panel access on login page. Remediation is available by upgrading affected packages to version 4.12.5, 5.7.5.

CVE-2026-84307 at a Glance

CVE Identifier CVE-2026-84307
GHSA Identifier GHSA-xwpv-pqxp-5v36
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-204: Observable Response Discrepancy
Affected Product Filament
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 3.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-84307

To remediate this vulnerability, upgrade all affected Filament dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

filament/filament fixed: 4.12.5 
Upgrade filament/filament to 4.12.5
filament/filament fixed: 5.7.5 
Upgrade filament/filament to 5.7.5
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for filament/filament

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-84307, inspect your project dependencies for Filament:

inspect dependencies for filament/filament

Analyze the terminal output to locate any version of Filament in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.12.5), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-204: Observable Response Discrepancy, where the product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere. In Filament, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

When multi-factor authentication is enabled, the login page presents the multi-factor challenge before evaluating `canAccessPanel()`. For an account that `canAccessPanel()` denies, submitting the correct password renders the challenge while an incorrect password returns the generic failure message, allowing an unauthenticated attacker to confirm that a password is valid for that account. When email-based multi-factor authentication is used, a login code is also sent to the account holder. This issue **only** applies to accounts that both have multi-factor authentication enabled and are denied by `canAccessPanel()`. Authentication is not bypassed as the check still runs after the challenge, and no session is created.

CVE-2026-84307 Affected Filament Versions

2 component(s)
Fixed Versions:
4.12.55.7.5
Product / Package Ecosystem Affected Versions Fixed Version
filament/filament
 Packagist
≥ 4.0.0
< 4.12.5
4.12.5
filament/filament
 Packagist
≥ 5.0.0
< 5.7.5
5.7.5

References

GitHub Advisory / Wiki ADVISORY
https://github.com/filamentphp/filament/security/advisories/GHSA-xwpv-pqxp-5v36
Filament Source Repository REPOSITORY
https://github.com/filamentphp/filament/pull/20308
Security Fix Commit FIX COMMIT
https://github.com/filamentphp/filament/commit/ad5aacbc6d089b3dd7243ec1c1f8ab19dff7c3a1
Filament Source Repository REPOSITORY
https://github.com/filamentphp/filament
Filament Release RELEASE
https://github.com/filamentphp/filament/releases/tag/v4.12.5
Filament Release RELEASE
https://github.com/filamentphp/filament/releases/tag/v5.7.5

Frequently Asked Questions

What is CVE-2026-84307?
CVE-2026-84307 is a security vulnerability in Filament involving Password validity disclosure for accounts denied panel access on login page under CWE-204: Observable Response Discrepancy.
Which Filament versions are affected?
Affected versions include releases prior to 4.12.5, 5.7.5 across affected packages: filament/filament.
What version fixes CVE-2026-84307?
Upgrading to 4.12.5, 5.7.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is filament/filament affected?
Yes, filament/filament is affected in releases prior to 4.12.5, 5.7.5. Upgrade your dependency to 4.12.5, 5.7.5 or later.
What is the CVSS score of CVE-2026-84307?
CVE-2026-84307 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-84307?
CVE-2026-84307 is classified under CWE-204: Observable Response Discrepancy (The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.).
How can I check Packagist dependencies for CVE-2026-84307?
Run the dependency tree command: 'inspect dependencies for filament/filament'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xwpv-pqxp-5v36",
  "modified" : "2026-09-01T21:29:00Z",
  "published" : "2026-09-01T21:29:00Z",
  "aliases" : [ "CVE-2026-84307" ],
  "summary" : "Filament: Password validity disclosure for accounts denied panel access on login page",
  "details" : "When multi-factor authentication is enabled, the login page presents the multi-factor challenge before evaluating `canAccessPanel()`. For an account that `canAccessPanel()` denies, submitting the correct password renders the challenge while an incorrect password returns the generic failure message, allowing an unauthenticated attacker to confirm that a password is valid for that account. When email-based multi-factor authentication is used, a login code is also sent to the account holder.\n\nThis issue **only** applies to accounts that both have multi-factor authentication enabled and are denied by `canAccessPanel()`. Authentication is not bypassed as the check still runs after the challenge, and no session is created.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "filament/filament"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.12.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "filament/filament"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.0.0"
      }, {
        "fixed" : "5.7.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/filamentphp/filament/security/advisories/GHSA-xwpv-pqxp-5v36"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/filamentphp/filament/pull/20308"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/filamentphp/filament/commit/ad5aacbc6d089b3dd7243ec1c1f8ab19dff7c3a1"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/filamentphp/filament"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/filamentphp/filament/releases/tag/v4.12.5"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/filamentphp/filament/releases/tag/v5.7.5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-204" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-01T21:29:00Z",
    "nvd_published_at" : null
  }
}