CVE-2026-56450: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-hc8r-p4jw-p6fr
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CWE-307
Published
Advisory Summary

CVE-2026-56450 is a MODERATE security vulnerability vulnerability (CWE-307: Improper Restriction of Excessive Authentication Attempts) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-56450 at a Glance

CVE Identifier CVE-2026-56450
GHSA Identifier GHSA-hc8r-p4jw-p6fr
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-307: Improper Restriction of Excessive Authentication Attempts
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-56450

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

Verify Direct and Transitive Dependencies

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

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-56450, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

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

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-307: Improper Restriction of Excessive Authentication Attempts, where the product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame. In Software, 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

AIL did not restrict repeated failed attempts to verify a two-factor authentication (OTP) code. An attacker who had reached the 2FA verification step, such as after successfully completing the password-authentication stage, could submit an unlimited number of OTP guesses. This could enable brute-force guessing of a valid code and bypass the intended second authentication factor, resulting in unauthorized account access. The patch introduces per-user failed-OTP tracking, blocks verification after 30 failed attempts for one hour, clears the counter after a successful OTP verification, and provides administrator recovery actions to purge affected lockouts.

References

NVD — CVE-2026-56450 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56450
Security Fix Commit FIX COMMIT
https://github.com/ail-project/ail-framework/commit/d3a394fe68fd5aeee86f3a3c91d4a0350f91e974

Frequently Asked Questions

What is CVE-2026-56450?
CVE-2026-56450 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-307: Improper Restriction of Excessive Authentication Attempts.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-56450?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-56450?
CVE-2026-56450 is classified under CWE-307: Improper Restriction of Excessive Authentication Attempts (The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.).
How can I check Maven dependencies for CVE-2026-56450?
Run the dependency tree command: 'mvn dependency:tree'. 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-hc8r-p4jw-p6fr",
  "modified" : "2026-06-22T15:30:45Z",
  "published" : "2026-06-22T15:30:45Z",
  "aliases" : [ "CVE-2026-56450" ],
  "details" : "AIL did not restrict repeated failed attempts to verify a two-factor authentication (OTP) code. An attacker who had reached the 2FA verification step, such as after successfully completing the password-authentication stage, could submit an unlimited number of OTP guesses. This could enable brute-force guessing of a valid code and bypass the intended second authentication factor, resulting in unauthorized account access.\n\n\nThe patch introduces per-user failed-OTP tracking, blocks verification after 30 failed attempts for one hour, clears the counter after a successful OTP verification, and provides administrator recovery actions to purge affected lockouts.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-56450"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ail-project/ail-framework/commit/d3a394fe68fd5aeee86f3a3c91d4a0350f91e974"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-307" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-22T14:17:50Z"
  }
}