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Fencer Vulns
medium 6.5

CVE-2025-32910 json

Libsoup: null pointer deference on libsoup via /auth/soup-auth-digest.c through "soup_auth_digest_authenticate" on client when server omits the "realm" parameter in an unauthorized response with digest authentication

published 2025-04-14 18 mo ago modified 2026-11-05 4 d ago also EUVD-2025-10888

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

A flaw was found in libsoup, where soup_auth_digest_authenticate() is vulnerable to a NULL pointer dereference. This issue may cause the libsoup client to crash.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 8 0:2.8-3.el8_10.1, 0:8.10-1
  • libsoup3 Debian 12 3.2.3-0+deb12u1
  • libsoup3 Debian 13 3.6.4-1
  • libsoup2.4 Debian 13 2.74.3-10.1

debian advisories DEBIAN-CVE-2025-32910

  • libsoup3 Ubuntu 24.04 LTS 3.4.4-5ubuntu0.3
  • libsoup2.4 Ubuntu 20.04 LTS 2.70.0-1ubuntu0.3
  • libsoup2.4 Ubuntu 22.04 LTS 2.74.2-3ubuntu0.3
  • libsoup2.4 Ubuntu 24.04 LTS 2.74.3-6ubuntu1.3
  • libsoup3 Ubuntu Pro 22.04 LTS 3.0.7-0ubuntu1+esm3
  • libsoup2.4 Ubuntu Pro 16.04 LTS 2.52.2-1ubuntu0.3+esm1
  • libsoup2.4 Ubuntu Pro 18.04 LTS 2.62.1-1ubuntu0.4+esm2

ubuntu advisories UBUNTU-CVE-2025-32910

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

  • mingw-freetype RHEL 8 2.8-3.el8_10.1
  • spice-client-win RHEL 8 8.10-1.el8_10
  • mingw32-freetype RHEL 8 2.8-3.el8_10.1
  • mingw64-freetype RHEL 8 2.8-3.el8_10.1
  • spice-client-win-x64 RHEL 8 8.10-1.el8_10
  • spice-client-win-x86 RHEL 8 8.10-1.el8_10

red hat advisories RHSA-2025:8292

  • libsoup Linux Micro 6.1 3.4.4-slfo.1.1_3.1
  • libsoup2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +10 more 2.74.2-150400.3.9.1
  • libsoup2 SLE Module for Basesystem 15 SP7, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.74.3-150600.4.9.1
  • libsoup SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +2 more 2.68.4-150200.4.9.1
  • 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
  • libsoup SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.62.2-5.15.1

suse advisories SUSE-SU-2025:20446-1SUSE-SU-2025:01864-1SUSE-SU-2025:01802-1SUSE-SU-2025:01801-1SUSE-SU-2025:01794-1SUSE-SU-2025:01504-1

  • libsoup2 openSUSE Tumbleweed 2.74.3-11.1

opensuse advisories openSUSE-SU-2025:15189-1

  • mingw32-freetype AlmaLinux 8 2.8-3.el8_10.1
  • mingw64-freetype AlmaLinux 8 2.8-3.el8_10.1

almalinux advisories ALSA-2025:8292

  • mingw-freetype Rocky Linux 8 2.8-3.el8_10.1
  • spice-client-win Rocky Linux 8 8.10-1.el8_10

rocky linux advisories RLSA-2025:8292

  • libsoup CBL-Mariner 2.0 3.0.4-7
  • libsoup Azure Linux 3.0 3.4.4-4

azure linux advisories AZL-60390AZL-60424

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-2025-32910 updated cvss 6.5

libsoup: Null pointer deference on libsoup via /auth/soup-auth-digest.c through "soup_auth_digest_authenticate" on client when server omits the "realm" parameter in an Unauthorized response with Diges

  • Red Hat Enterprise Linux 6 libsoup Red Hat Enterprise Linux 7 libsoup
    affected: workaround, no fix planned “Currently, no mitigation is available for this vulnerability.”
  • Red Hat Enterprise Linux 8 libsoup Red Hat Enterprise Linux 9 libsoup
    affected: workaround, no fix available “Currently, no mitigation is available for this vulnerability.”
  • Red Hat Enterprise Linux AppStream (v. 8) spice-client-win 8.10-1.el8_10, spice-client-win-x64 8.10-1.el8_10, spice-client-win-x86 8.10-1.el8_10 Red Hat Enterprise Linux CRB (v. 8) mingw-freetype 2.8-3.el8_10.1, mingw32-freetype 2.8-3.el8_10.1, mingw64-freetype 2.8-3.el8_10.1
    fixed: vendor fix “Currently, no mitigation is available for this vulnerability.” RHSA-2025:8292
  • 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
18 mo ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 8
  • 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 9

Classification

Weakness

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.