CVE-2026-19748: Software Security Vulnerability Vulnerability

LOW
Advisory Identifier: GHSA-6ww3-pvc7-5crf
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CVSS 3.7
CWE-330
Published
Advisory Summary

CVE-2026-19748 is a LOW (CVSS 3.7) security vulnerability vulnerability (CWE-330: Use of Insufficiently Random Values) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-19748 at a Glance

CVE Identifier CVE-2026-19748
GHSA Identifier GHSA-6ww3-pvc7-5crf
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-330: Use of Insufficiently Random Values
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.7

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

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

How to Fix CVE-2026-19748

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-2026-19748, 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-330: Use of Insufficiently Random Values, where the product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. 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 security vulnerability has been detected in Tenda CH7, CH7G, CH10, CP3, CP3 Pro, CP7, TC3B14C, TC3B15C, TC3T14C and TC3T15C up to 20260625. Affected is the function CWebSessionManager_ParseSession of the file /user/bin/Kylin of the component Kylin Web Service. Such manipulation of the argument SESSION leads to insufficient entropy. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is told to be difficult.

References

NVD — CVE-2026-19748 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19748
Software Source Repository REPOSITORY
https://github.com/howitouchyou/Tenda-Smart-Camera-Vulnerability/blob/main/Tenda%20Weak%20Bypass/Tenda%20Camera%20Weak%20Session%20Authentication%20Bypass.md
vuldb.com/cve/cve-2026-19748 WEB
https://vuldb.com/cve/CVE-2026-19748
vuldb.com/submit/868490 WEB
https://vuldb.com/submit/868490
vuldb.com/vuln/389499 WEB
https://vuldb.com/vuln/389499
vuldb.com/vuln/389499/cti WEB
https://vuldb.com/vuln/389499/cti
www.tenda.com.cn WEB
https://www.tenda.com.cn

Frequently Asked Questions

What is CVE-2026-19748?
CVE-2026-19748 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-330: Use of Insufficiently Random Values.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-19748?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-19748?
CVE-2026-19748 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-19748?
CVE-2026-19748 is classified under CWE-330: Use of Insufficiently Random Values (The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.).
How can I check Maven dependencies for CVE-2026-19748?
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-6ww3-pvc7-5crf",
  "modified" : "2026-08-13T21:36:14Z",
  "published" : "2026-08-13T21:36:14Z",
  "aliases" : [ "CVE-2026-19748" ],
  "details" : "A security vulnerability has been detected in Tenda CH7, CH7G, CH10, CP3, CP3 Pro, CP7, TC3B14C, TC3B15C, TC3T14C and TC3T15C up to 20260625. Affected is the function CWebSessionManager_ParseSession of the file /user/bin/Kylin of the component Kylin Web Service. Such manipulation of the argument SESSION leads to insufficient entropy. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is told to be difficult.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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-2026-19748"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/howitouchyou/Tenda-Smart-Camera-Vulnerability/blob/main/Tenda%20Weak%20Bypass/Tenda%20Camera%20Weak%20Session%20Authentication%20Bypass.md"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/cve/CVE-2026-19748"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/868490"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/389499"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/389499/cti"
  }, {
    "type" : "WEB",
    "url" : "https://www.tenda.com.cn"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-330" ],
    "severity" : "LOW",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-13T21:17:46Z"
  }
}