---
id: CVE-2026-78243
title: >-
  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 spe…
summary: >-
  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 spe…
severity: low
cvss: 2.1
cvssVector: >-
  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/S:N/AU:N/R:A/V:D/RE:H/U:Green
cwe:
  - CWE-248
vendor: Apache Software Foundation
product: github.com/apache/yunikorn-k8shim
affected:
  - github.com/apache/yunikorn-k8shim >= 1.8.0 < 1.10.0
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T11:17:19.810'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78243'
references:
  - url: 'https://lists.apache.org/thread.html/yz51lpj6k8q2hz7x2gjdpcrk44hdn25v'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/10/07/24'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-07T10:25:12.189Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.