CVE-2026-67292: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-v4xr-wq7x-967g
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CVSS 6.5
CWE-130
Published
Advisory Summary

CVE-2026-67292 is a CRITICAL (CVSS 6.5) security vulnerability vulnerability (CWE-130: Improper Handling of Length Parameter Inconsistency) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-67292 at a Glance

CVE Identifier CVE-2026-67292
GHSA Identifier GHSA-v4xr-wq7x-967g
Severity CRITICAL
CVSS v3.1 Base Score 6.5
CWE Classification CWE-130: Improper Handling of Length Parameter Inconsistency
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:L/I:N/A:L).

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 Low (C:L)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2026-67292

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-2026-67292, 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-130: Improper Handling of Length Parameter Inconsistency, where the product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data. 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

FreeRDP before 3.29.0 contains a buffer over-disclosure vulnerability in the gateway WebSocket transport (libfreerdp/core/gateway/websocket.c). The client's Pong reply reuses a fixed 1024-byte response stream whose length is not sealed to the actual received Ping payload, so a malicious gateway/WebSocket peer sending a non-empty Ping control frame causes the client to reply with an overlong Pong that discloses bytes beyond the received payload (the peer receives the masking key and can unmask the reply). A zero-length Ping reaches an assertion and terminates the client (denial of service).

References

GitHub Advisory / Wiki ADVISORY
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8v6m-2cmc-chx9
NVD — CVE-2026-67292 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-67292
Security Fix Commit FIX COMMIT
https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f
www.vulncheck.com/advisories/freerdp-... WEB
https://www.vulncheck.com/advisories/freerdp-before-websocket-ping-buffer-over-disclosure

Frequently Asked Questions

What is CVE-2026-67292?
CVE-2026-67292 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-130: Improper Handling of Length Parameter Inconsistency.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-67292?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-67292?
CVE-2026-67292 has a CVSS v3.1 base score of 6.5 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
What CWE is associated with CVE-2026-67292?
CVE-2026-67292 is classified under CWE-130: Improper Handling of Length Parameter Inconsistency (The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.).
How can I check Maven dependencies for CVE-2026-67292?
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-v4xr-wq7x-967g",
  "modified" : "2026-08-01T15:30:25Z",
  "published" : "2026-08-01T15:30:25Z",
  "aliases" : [ "CVE-2026-67292" ],
  "details" : "FreeRDP before 3.29.0 contains a buffer over-disclosure vulnerability in the gateway WebSocket transport (libfreerdp/core/gateway/websocket.c). The client's Pong reply reuses a fixed 1024-byte response stream whose length is not sealed to the actual received Ping payload, so a malicious gateway/WebSocket peer sending a non-empty Ping control frame causes the client to reply with an overlong Pong that discloses bytes beyond the received payload (the peer receives the masking key and can unmask the reply). A zero-length Ping reaches an assertion and terminates the client (denial of service).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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" : "WEB",
    "url" : "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8v6m-2cmc-chx9"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-67292"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/freerdp-before-websocket-ping-buffer-over-disclosure"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-130" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-01T13:16:58Z"
  }
}