CVE-2026-101100: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-3mm7-4jh6-p5gf
Share
CVSS 5.4
CWE-459
Published
Advisory Summary

CVE-2026-101100 is a MODERATE (CVSS 5.4) security vulnerability vulnerability (CWE-459: Incomplete Cleanup) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not properly "clean up" and remove temporary or supporting resources after they have been used.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-101100 at a Glance

CVE Identifier CVE-2026-101100
GHSA Identifier GHSA-3mm7-4jh6-p5gf
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-459: Incomplete Cleanup
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.4

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

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

How to Fix CVE-2026-101100

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-2026-101100, 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-459: Incomplete Cleanup, where the product does not properly "clean up" and remove temporary or supporting resources after they have been used. 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

A flaw has been found in ag-ui-protocol ag-ui up to 2026-09-07. This vulnerability affects the function FilterToolCallsMiddleware of the file sdks/typescript/packages/client/src/middleware/filter-tool-calls.ts of the component Middleware. Executing a manipulation can lead to incomplete cleanup. The attack may be launched remotely. Upgrading to version 2026-09-08 is able to resolve this issue. This patch is called c346119fe870b70f5c19738ee5119f3e1456e59d. It is suggested to upgrade the affected component.

References

NVD — CVE-2026-101100 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-101100
Software Source Repository REPOSITORY
https://github.com/ag-ui-protocol/ag-ui/issues/2443
Software Source Repository REPOSITORY
https://github.com/ag-ui-protocol/ag-ui/pull/2494
Security Fix Commit FIX COMMIT
https://github.com/ag-ui-protocol/ag-ui/commit/c346119fe870b70f5c19738ee5119f3e1456e59d
Software Source Repository REPOSITORY
https://github.com/ag-ui-protocol/ag-ui
Software Release RELEASE
https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-09-08
vuldb.com/cve/cve-2026-101100 WEB
https://vuldb.com/cve/CVE-2026-101100
vuldb.com/submit/934980 WEB
https://vuldb.com/submit/934980
vuldb.com/vuln/410975 WEB
https://vuldb.com/vuln/410975
vuldb.com/vuln/410975/cti WEB
https://vuldb.com/vuln/410975/cti

Frequently Asked Questions

What is CVE-2026-101100?
CVE-2026-101100 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-459: Incomplete Cleanup.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-101100?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-101100?
CVE-2026-101100 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
What CWE is associated with CVE-2026-101100?
CVE-2026-101100 is classified under CWE-459: Incomplete Cleanup (The product does not properly "clean up" and remove temporary or supporting resources after they have been used.).
How can I check Maven dependencies for CVE-2026-101100?
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-3mm7-4jh6-p5gf",
  "modified" : "2026-09-28T18:31:26Z",
  "published" : "2026-09-28T18:31:26Z",
  "aliases" : [ "CVE-2026-101100" ],
  "details" : "A flaw has been found in ag-ui-protocol ag-ui up to 2026-09-07. This vulnerability affects the function FilterToolCallsMiddleware of the file sdks/typescript/packages/client/src/middleware/filter-tool-calls.ts of the component Middleware. Executing a manipulation can lead to incomplete cleanup. The attack may be launched remotely. Upgrading to version 2026-09-08 is able to resolve this issue. This patch is called c346119fe870b70f5c19738ee5119f3e1456e59d. It is suggested to upgrade the affected component.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/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-2026-101100"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ag-ui-protocol/ag-ui/issues/2443"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ag-ui-protocol/ag-ui/pull/2494"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ag-ui-protocol/ag-ui/commit/c346119fe870b70f5c19738ee5119f3e1456e59d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ag-ui-protocol/ag-ui"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-09-08"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/cve/CVE-2026-101100"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/934980"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/410975"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/410975/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-459" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-28T18:17:16Z"
  }
}