---
id: CVE-2025-32053
title: A flaw was found in libsoup
summary: >-
  A flaw was found in libsoup. A vulnerability in sniff_feed_or_html() and
  skip_insignificant_space() functions may lead to a heap buffer over-read.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'
cwe:
  - CWE-126
published: '2025-04-03'
updated: '2026-06-26'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-32053'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2025:4440'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:4508'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:4560'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:4568'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:7436'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:8292'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2025-32053'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2357070'
    label: secalert@redhat.com
  - url: 'https://gitlab.gnome.org/GNOME/libsoup/-/issues/426'
    label: secalert@redhat.com
  - url: 'https://lists.debian.org/debian-lts-announce/2025/04/msg00036.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-32053.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2025-32053'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-32053'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
epss: 0.00669
epssPercentile: 0.51737
ingestedAt: '2026-06-26T16:43:13.582Z'
vendor: Red Hat
product: Red Hat Enterprise Linux AppStream EUS (v.9.2)
affected:
  - enterprise_linux 6
  - enterprise_linux 7
  - enterprise_linux_appstream_v_8
  - enterprise_linux_appstream_eus_v_8_8
  - enterprise_linux_appstream_eus_v_9_2
  - enterprise_linux_appstream_eus_v_9_4
  - enterprise_linux_appstream_v_9
  - enterprise_linux_baseos_v_8
  - enterprise_linux_baseos_eus_v_8_8
  - enterprise_linux_crb_v_8
patched:
  - enterprise_linux_appstream_v_8
  - enterprise_linux_appstream_eus_v_8_8
  - enterprise_linux_appstream_eus_v_9_2
  - enterprise_linux_appstream_eus_v_9_4
  - enterprise_linux_appstream_v_9
  - enterprise_linux_baseos_v_8
  - enterprise_linux_baseos_eus_v_8_8
  - enterprise_linux_crb_v_8
---

## Overview

A flaw was found in libsoup. A vulnerability in sniff_feed_or_html() and skip_insignificant_space() functions may lead to a heap buffer over-read.

## Remediation

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

## Vendor advisories

- **RHSA-2025:4560** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8) · released 2025-05-06 · [advisory](https://access.redhat.com/errata/RHSA-2025:4560)
- **RHSA-2025:8292** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2025-05-29 · [advisory](https://access.redhat.com/errata/RHSA-2025:8292)
- **RHSA-2025:4568** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.8.8), Red Hat Enterprise Linux BaseOS EUS (v.8.8) · released 2025-05-06 · [advisory](https://access.redhat.com/errata/RHSA-2025:4568)
- **RHSA-2025:4508** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.2) · released 2025-05-06 · [advisory](https://access.redhat.com/errata/RHSA-2025:4508)
- **RHSA-2025:4440** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.4) · released 2025-05-05 · [advisory](https://access.redhat.com/errata/RHSA-2025:4440)
- **RHSA-2025:7436** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2025-05-13 · [advisory](https://access.redhat.com/errata/RHSA-2025:7436)
- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-32053.json)