Skip to content
Fencer Vulns
medium 5.9

CVE-2025-32051 json

Libsoup: segmentation fault when parsing malformed data uri

published 2025-04-03 19 mo ago modified 2026-11-05 3 d ago also EUVD-2025-9632

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

A flaw was found in libsoup. The libsoup soup_uri_decode_data_uri() function may crash when processing malformed data URI. This flaw allows an attacker to cause a denial of service (DoS).

Patch / fix

  • libsoup3 Debian 12 3.2.3-0+deb12u1
  • libsoup3 Debian 13 3.6.1-1

debian advisories DEBIAN-CVE-2025-32051

  • libsoup3 Ubuntu 24.04 LTS 3.4.4-5ubuntu0.2
  • libsoup3 Ubuntu Pro 22.04 LTS 3.0.7-0ubuntu1+esm2

ubuntu advisories UBUNTU-CVE-2025-32051

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libsoup Linux Micro 6.1 3.4.4-slfo.1.1_3.1
  • libsoup SLE Module for Basesystem 15 SP7, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 3.4.4-150600.3.7.1
  • libsoup Linux Micro 6.0 3.4.2-6.1
  • libsoup SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +7 more 3.0.4-150400.3.7.1

suse advisories SUSE-SU-2025:20446-1SUSE-SU-2025:01504-1SUSE-SU-2025:20375-1SUSE-SU-2025:1510-1SUSE-SU-2025:1504-1

  • libsoup CBL-Mariner 2.0 3.0.4-6
  • libsoup Azure Linux 3.0 3.4.4-6

azure linux advisories AZL-59526AZL-59541

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-32051 updated cvss 5.9

libsoup: Segmentation fault when parsing malformed data URI

  • Red Hat Enterprise Linux 6 libsoup Red Hat Enterprise Linux 7 libsoup
    affected: workaround, no fix planned “No mitigation is currently available for this vulnerability.”
  • Red Hat Enterprise Linux 8 libsoup Red Hat Enterprise Linux 9 libsoup Red Hat Enterprise Linux 10 libsoup3
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-754 Improper Check for Unusual or Exceptional Conditions

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.