CVE-2026-48505 is a high-severity race condition vulnerability in filament/filament (composer), affecting versions >= 4.0.0, < 4.11.5. It is fixed in 4.11.5, 5.6.5.
A flaw in the handling of recovery codes for app-based multi-factor authentication allows the same recovery code to be reused via concurrent submission. This issue does not affect email-based MFA. It also only applies when recovery codes are enabled. If an attacker gains access to both the user's password and their recovery codes, they get two authenticated sessions per recovery code burned instead of one, or more if they batch the parallel submissions wider, materially extending the attacker's window of access compared to what the single-use guarantee implies.
Multiple concurrent operations access a shared resource without proper synchronization, producing unpredictable results depending on timing. Typical impact: TOCTOU exploits, data corruption, or privilege escalation.
CVE-2026-48505 has a CVSS score of 7.4 (High). 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 (4.11.5, 5.6.5). Upgrading removes the vulnerable code path.
composer
filament/filament (>= 4.0.0, < 4.11.5)filament/filament (>= 5.0.0, < 5.6.5)filament/filament → 4.11.5 (composer)filament/filament → 5.6.5 (composer)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 instead of chasing every advisory.
Kodem's runtime-powered SCA identifies whether CVE-2026-48505 is reachable in your applications. Explore open-source security for your team.
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Already deployed Kodem? See CVE-2026-48505 in your environment →Upgrade the following packages to resolve this vulnerability:
filament/filament to 4.11.5 or laterfilament/filament to 5.6.5 or laterKodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
CVE-2026-48505 is a high-severity race condition vulnerability in filament/filament (composer), affecting versions >= 4.0.0, < 4.11.5. It is fixed in 4.11.5, 5.6.5. Multiple concurrent operations access a shared resource without proper synchronization, producing unpredictable results depending on timing.
CVE-2026-48505 has a CVSS score of 7.4 (High). 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.
filament/filament (composer) versions >= 4.0.0, < 4.11.5 is affected.
Yes. CVE-2026-48505 is fixed in 4.11.5, 5.6.5. Upgrade to this version or later.
Whether CVE-2026-48505 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
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.
filament/filament to 4.11.5 or laterfilament/filament to 5.6.5 or later