---
id: CVE-2023-32611
title: A flaw was found in GLib
summary: >-
  A flaw was found in GLib. GVariant deserialization is vulnerable to a slowdown
  issue where a crafted GVariant can cause excessive processing, leading to
  denial of service.
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
  - CWE-400
vendor: gnome
product: glib
affected:
  - glib < 2.74.2
patched:
  - glib 2.74.2
published: '2023-09-14'
updated: '2026-06-23'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-32611'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2023-32611'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2211829'
    label: secalert@redhat.com
  - url: 'https://gitlab.gnome.org/GNOME/glib/-/issues/2797'
    label: secalert@redhat.com
  - url: 'https://lists.debian.org/debian-lts-announce/2023/09/msg00030.html'
    label: secalert@redhat.com
  - url: 'https://security.gentoo.org/glsa/202311-18'
    label: secalert@redhat.com
  - url: 'https://security.netapp.com/advisory/ntap-20231027-0005/'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2023-32611'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2211829'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://gitlab.gnome.org/GNOME/glib/-/issues/2797'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2023/09/msg00030.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.gentoo.org/glsa/202311-18'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20231027-0005/'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00379
epssPercentile: 0.29051
ingestedAt: '2026-06-29T13:24:33.904Z'
---

## Overview

A flaw was found in GLib. GVariant deserialization is vulnerable to a slowdown issue where a crafted GVariant can cause excessive processing, leading to denial of service.

## Affected

- `glib < 2.74.2`

## Remediation

Upgrade past the affected range:

- `glib 2.74.2`