---
id: CVE-2026-85231
title: A flaw was found in libtirpc
summary: >-
  A flaw was found in libtirpc. An authenticated remote attacker could exploit
  this vulnerability by sending oversized wrapped data requests to an RPC
  (Remote Procedure Call) service configured with RPCSEC_GSS (Remote Procedure
  Call Securi…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-770
vendor: Red Hat
product: libtirpc
affected:
  - libtirpc (all versions)
  - libtirpc (all versions)
  - libtirpc (all versions)
  - libtirpc (all versions)
  - libtirpc (all versions)
  - libtirpc (all versions)
  - openshift/ose-rhel-coreos-8 (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T20:18:12.170'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85231'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-85231'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2478512'
    label: secalert@redhat.com
tags:
  - nvd
  - cve.org
epss: 0.00297
epssPercentile: 0.22224
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T19:09:58.126991Z'
ingestedAt: '2026-10-16T18:43:08.624Z'
---

## Overview

A flaw was found in libtirpc. An authenticated remote attacker could exploit this vulnerability by sending oversized wrapped data requests to an RPC (Remote Procedure Call) service configured with RPCSEC_GSS (Remote Procedure Call Security-Generic Security Service) integrity or privacy. This can lead to unbounded memory allocation, resulting in a Denial of Service (DoS) by exhausting system resources and causing the service to become unstable or terminate.

## Remediation

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