Summary
Filament: Password validity disclosure for accounts denied panel access on login page
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.
Impact
CVE-2026-84307 has a CVSS score of 3.7 (Low). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (4.12.5, 5.7.5); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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filament/filament to 4.12.5 or later; filament/filament to 5.7.5 or later
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2026-84307? CVE-2026-84307 is a low-severity security vulnerability in filament/filament (composer), affecting versions >= 4.0.0, < 4.12.5. It is fixed in 4.12.5, 5.7.5.
- How severe is CVE-2026-84307? CVE-2026-84307 has a CVSS score of 3.7 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of filament/filament are affected by CVE-2026-84307? filament/filament (composer) versions >= 4.0.0, < 4.12.5 is affected.
- Is there a fix for CVE-2026-84307? Yes. CVE-2026-84307 is fixed in 4.12.5, 5.7.5. Upgrade to this version or later.
- Is CVE-2026-84307 exploitable, and should I be worried? Whether CVE-2026-84307 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2026-84307 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2026-84307?
- Upgrade
filament/filamentto 4.12.5 or later - Upgrade
filament/filamentto 5.7.5 or later
- Upgrade