CVE-2026-85183: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-jcr8-jmf2-43vw
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CVSS 9.3
CWE-1385
Published
Advisory Summary

CVE-2026-85183 is a CRITICAL (CVSS 9.3) security vulnerability vulnerability (CWE-1385: Missing Origin Validation in WebSockets) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses a websocket, but it does not properly verify that the source of data or communication is valid.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-85183 at a Glance

CVE Identifier CVE-2026-85183
GHSA Identifier GHSA-jcr8-jmf2-43vw
Severity CRITICAL
CVSS v3.1 Base Score 9.3
CWE Classification CWE-1385: Missing Origin Validation in WebSockets
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.3

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:R/S:C/C:H/I:H/A:N).

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

How to Fix CVE-2026-85183

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-2026-85183, 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-1385: Missing Origin Validation in WebSockets, where the product uses a websocket, but it does not properly verify that the source of data or communication is valid. 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

Taipy configures its socket.io server with wildcard CORS origin and credential flag enabled, allowing any web page to establish credentialed WebSocket connections to victim applications. Attackers can open socket.io sessions from arbitrary domains and invoke state variable modifications and action callbacks without CSRF protection.

References

NVD — CVE-2026-85183 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85183
Software Source Repository REPOSITORY
https://github.com/Avaiga/taipy/issues/2890
Software Source Repository REPOSITORY
https://github.com/Avaiga/taipy
Software Source Repository REPOSITORY
https://github.com/Avaiga/taipy/blob/4.1.1/taipy/gui/server.py
www.vulncheck.com/advisories/taipy-th... WEB
https://www.vulncheck.com/advisories/taipy-through-4.1.1-cross-site-websocket-hijacking-via-wildcard-socket-io-cors

Frequently Asked Questions

What is CVE-2026-85183?
CVE-2026-85183 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-1385: Missing Origin Validation in WebSockets.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-85183?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-85183?
CVE-2026-85183 has a CVSS v3.1 base score of 9.3 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2026-85183?
CVE-2026-85183 is classified under CWE-1385: Missing Origin Validation in WebSockets (The product uses a WebSocket, but it does not properly verify that the source of data or communication is valid.).
How can I check Maven dependencies for CVE-2026-85183?
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-jcr8-jmf2-43vw",
  "modified" : "2026-09-03T15:32:25Z",
  "published" : "2026-09-03T15:32:25Z",
  "aliases" : [ "CVE-2026-85183" ],
  "details" : "Taipy configures its socket.io server with wildcard CORS origin and credential flag enabled, allowing any web page to establish credentialed WebSocket connections to victim applications. Attackers can open socket.io sessions from arbitrary domains and invoke state variable modifications and action callbacks without CSRF protection.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/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-2026-85183"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Avaiga/taipy/issues/2890"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Avaiga/taipy"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Avaiga/taipy/blob/4.1.1/taipy/gui/server.py"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/taipy-through-4.1.1-cross-site-websocket-hijacking-via-wildcard-socket-io-cors"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1385" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-03T15:17:39Z"
  }
}