CVE-2026-64619: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-q7qg-rc6j-fpwp
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CVSS 7.5
CWE-348
Published
Advisory Summary

CVE-2026-64619 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-348: Use of Less Trusted Source) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64619 at a Glance

CVE Identifier CVE-2026-64619
GHSA Identifier GHSA-q7qg-rc6j-fpwp
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-348: Use of Less Trusted Source
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

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

How to Fix CVE-2026-64619

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-2026-64619, 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-348: Use of Less Trusted Source, where the product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack. 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

FileCodeBox before 2.4 contains a rate-limit bypass vulnerability in the IPRateLimit class that allows unauthenticated attackers to circumvent request throttling by supplying attacker-controlled X-Real-IP and X-Forwarded-For headers without verification of trusted reverse proxy origin. Attackers can supply unique spoofed IP values on each request to enumerate all possible share codes and retrieve other users' files without authentication.

References

NVD — CVE-2026-64619 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64619
Software Source Repository REPOSITORY
https://github.com/vastsa/FileCodeBox/issues/479
Security Fix Commit FIX COMMIT
https://github.com/vastsa/FileCodeBox/commit/1b6d8e7277d3cfa34dc7a85803731d927b2147da
Software Release RELEASE
https://github.com/vastsa/FileCodeBox/releases/tag/V2.4
www.vulncheck.com/advisories/filecode... WEB
https://www.vulncheck.com/advisories/filecodebox-anti-bruteforce-rate-limit-bypass-via-spoofed-headers

Frequently Asked Questions

What is CVE-2026-64619?
CVE-2026-64619 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-348: Use of Less Trusted Source.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64619?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64619?
CVE-2026-64619 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-64619?
CVE-2026-64619 is classified under CWE-348: Use of Less Trusted Source (The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.).
How can I check Maven dependencies for CVE-2026-64619?
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-q7qg-rc6j-fpwp",
  "modified" : "2026-07-20T21:31:50Z",
  "published" : "2026-07-20T21:31:50Z",
  "aliases" : [ "CVE-2026-64619" ],
  "details" : "FileCodeBox before 2.4 contains a rate-limit bypass vulnerability in the IPRateLimit class that allows unauthenticated attackers to circumvent request throttling by supplying attacker-controlled X-Real-IP and X-Forwarded-For headers without verification of trusted reverse proxy origin. Attackers can supply unique spoofed IP values on each request to enumerate all possible share codes and retrieve other users' files without authentication.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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-2026-64619"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vastsa/FileCodeBox/issues/479"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vastsa/FileCodeBox/commit/1b6d8e7277d3cfa34dc7a85803731d927b2147da"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vastsa/FileCodeBox/releases/tag/V2.4"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/filecodebox-anti-bruteforce-rate-limit-bypass-via-spoofed-headers"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-348" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-20T19:17:30Z"
  }
}