CVE-2026-78243: Software Security Vulnerability Vulnerability

LOW
Advisory Identifier: GHSA-79rm-9vfm-ggww
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CWE-248
Published
Advisory Summary

CVE-2026-78243 is a LOW security vulnerability vulnerability (CWE-248: Uncaught Exception) affecting Software libraries in the Maven ecosystem. The weakness occurs when an exception is thrown from a function, but it is not caught.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-78243 at a Glance

CVE Identifier CVE-2026-78243
GHSA Identifier GHSA-79rm-9vfm-ggww
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-248: Uncaught Exception
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-78243

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-2026-78243, 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-248: Uncaught Exception, where an exception is thrown from a function, but it is not caught. 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

Apache YuniKorn 1.8.0 and later, if configured with the LDAP group resolver, crashes due to an out of bounds read processing group membership entries.If the LDAP server returns a group membership entry, memberOf attribute, for a user specified in the pod the server crashes if a membership record does not start with "CN=". This only affects install that have the non default LDAP group provider configured.  Users are recommended to upgrade to version 1.10.0, which fixes this issue.

References

NVD — CVE-2026-78243 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78243
lists.apache.org/thread.html/yz51lpj... WEB
https://lists.apache.org/thread.html/yz51lpj6k8q2hz7x2gjdpcrk44hdn25v
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/10/07/24

Frequently Asked Questions

What is CVE-2026-78243?
CVE-2026-78243 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-248: Uncaught Exception.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-78243?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-78243?
CVE-2026-78243 is classified under CWE-248: Uncaught Exception (An exception is thrown from a function, but it is not caught.).
How can I check Maven dependencies for CVE-2026-78243?
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-79rm-9vfm-ggww",
  "modified" : "2026-10-07T12:31:58Z",
  "published" : "2026-10-07T12:31:58Z",
  "aliases" : [ "CVE-2026-78243" ],
  "details" : "Apache YuniKorn 1.8.0 and later, if configured with the LDAP group resolver, crashes due to an out of bounds read processing group membership entries.If the LDAP server returns a group membership entry, memberOf attribute, for a user specified in the pod the server crashes if a membership record does not start with \"CN=\".\n\n\n\n\nThis only affects install that have the non default LDAP group provider configured. \n\n\nUsers are recommended to upgrade to version 1.10.0, which fixes this issue.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/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:N/AU:N/R:A/V:D/RE:H/U:Green"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-78243"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread.html/yz51lpj6k8q2hz7x2gjdpcrk44hdn25v"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/10/07/24"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-248" ],
    "severity" : "LOW",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-07T10:17:36Z"
  }
}