CVE-2026-109379: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-gm9c-qwh2-h88c
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CVSS 5.3
CWE-208
Published
Advisory Summary

CVE-2026-109379 is a MODERATE (CVSS 5.3) security vulnerability vulnerability (CWE-208: Observable Timing Discrepancy) affecting Software libraries in the Maven ecosystem. The weakness occurs when two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-109379 at a Glance

CVE Identifier CVE-2026-109379
GHSA Identifier GHSA-gm9c-qwh2-h88c
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-208: Observable Timing Discrepancy
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

How to Fix CVE-2026-109379

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-2026-109379, 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-208: Observable Timing Discrepancy, where two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. 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

Cockpit CMS 2.14.1 contains an observable timing discrepancy vulnerability that allows unauthenticated attackers to enumerate accounts due to an incomplete timing fix in /auth/check. Attackers can post login attempts and measure response times, since existing accounts incur two bcrypt operations versus one, revealing valid usernames and email addresses.

References

NVD — CVE-2026-109379 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109379
Software Source Repository REPOSITORY
https://github.com/Cockpit-HQ/Cockpit/issues/328
Security Fix Commit FIX COMMIT
https://github.com/Cockpit-HQ/Cockpit/commit/5d65ae7b63a261a63e8809e5fba857ef3eadb2ac
Software Source Repository REPOSITORY
https://github.com/Cockpit-HQ/Cockpit
Software Source Repository REPOSITORY
https://github.com/Cockpit-HQ/Cockpit/blob/2.14.1/modules/App/Controller/Auth.php
Software Source Repository REPOSITORY
https://github.com/Cockpit-HQ/Cockpit/blob/2.14.1/modules/App/Helper/Auth.php
www.vulncheck.com/advisories/cockpit-... WEB
https://www.vulncheck.com/advisories/cockpit-cms-2.14.1-account-enumeration-via-timing-discrepancy-in-auth-check

Frequently Asked Questions

What is CVE-2026-109379?
CVE-2026-109379 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-208: Observable Timing Discrepancy.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-109379?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-109379?
CVE-2026-109379 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-109379?
CVE-2026-109379 is classified under CWE-208: Observable Timing Discrepancy (Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.).
How can I check Maven dependencies for CVE-2026-109379?
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-gm9c-qwh2-h88c",
  "modified" : "2026-10-12T21:31:58Z",
  "published" : "2026-10-12T21:31:58Z",
  "aliases" : [ "CVE-2026-109379" ],
  "details" : "Cockpit CMS 2.14.1 contains an observable timing discrepancy vulnerability that allows unauthenticated attackers to enumerate accounts due to an incomplete timing fix in /auth/check. Attackers can post login attempts and measure response times, since existing accounts incur two bcrypt operations versus one, revealing valid usernames and email addresses.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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-2026-109379"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Cockpit-HQ/Cockpit/issues/328"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Cockpit-HQ/Cockpit/commit/5d65ae7b63a261a63e8809e5fba857ef3eadb2ac"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Cockpit-HQ/Cockpit"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Cockpit-HQ/Cockpit/blob/2.14.1/modules/App/Controller/Auth.php"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Cockpit-HQ/Cockpit/blob/2.14.1/modules/App/Helper/Auth.php"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/cockpit-cms-2.14.1-account-enumeration-via-timing-discrepancy-in-auth-check"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-208" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-12T21:17:11Z"
  }
}