A flaw was found in the soup_multipart_new_from_message() function of the libsoup HTTP library, which is commonly used by GNOME and other applications to handle web communications. The issue occurs when the library processes specially crafted multipart messages. Due to improper validation, an internal calculation can go wrong, leading to an integer underflow. This can cause the program to access invalid memory and crash. As a result, any application or server using libsoup could be forced to exit unexpectedly, creating a denial-of-service (DoS) risk.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:8252 advisory.

    The libsoup packages provide an HTTP client and server library for GNOME.

    Security Fix(es):

    * libsoup: Heap buffer over-read in `skip_insignificant_space` when sniffing content (CVE-2025-2784)

    * libsoup: Denial of Service attack to websocket server (CVE-2025-32049)

    * libsoup: OOB Read on libsoup through function  soup_multipart_new_from_message in soup-multipart.c     leads to crash or  exit of process (CVE-2025-32914)

    * libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in libsoup     (CVE-2025-4948)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:8126 advisory.

    * libsoup: Heap buffer over-read in `skip_insignificant_space` when sniffing content (CVE-2025-2784)
      * libsoup: Denial of Service attack to websocket server (CVE-2025-32049)
      * libsoup: OOB Read on libsoup through function soup_multipart_new_from_message in soup-multipart.c     leads to crash or exit of process (CVE-2025-32914)
      * libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in     libsoup (CVE-2025-4948)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:8132 advisory.

    * libsoup: Heap buffer over-read in `skip_insignificant_space` when sniffing content (CVE-2025-2784)
      * libsoup: Denial of Service attack to websocket server (CVE-2025-32049)
      * libsoup: OOB Read on libsoup through function soup_multipart_new_from_message in soup-multipart.c     leads to crash or exit of process (CVE-2025-32914)
      * libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in     libsoup (CVE-2025-4948)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-8126 advisory.

    [2.72.0-10.2]
    - Backport patches for various CVEs       Resolves: RHEL-85888       Resolves: RHEL-87081       Resolves: RHEL-88332       Resolves: RHEL-92285

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-8132 advisory.

    [2.62.3-9]
    - Add patches to improve test reliability
    - Backport patches for various CVEs       Resolves: RHEL-85879       Resolves: RHEL-92280       Resolves: RHEL-93031       Resolves: RHEL-93032

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:8140 advisory.

    The libsoup packages provide an HTTP client and server library for GNOME.

    Security Fix(es):

    * libsoup: Heap buffer over-read in `skip_insignificant_space` when sniffing content (CVE-2025-2784)

    * libsoup: Denial of Service attack to websocket server (CVE-2025-32049)

    * libsoup: OOB Read on libsoup through function  soup_multipart_new_from_message in soup-multipart.c     leads to crash or  exit of process (CVE-2025-32914)

    * libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in libsoup     (CVE-2025-4948)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:8132 advisory.

    The libsoup packages provide an HTTP client and server library for GNOME.

    Security Fix(es):

    * libsoup: Heap buffer over-read in `skip_insignificant_space` when sniffing content (CVE-2025-2784)

    * libsoup: Denial of Service attack to websocket server (CVE-2025-32049)

    * libsoup: OOB Read on libsoup through function  soup_multipart_new_from_message in soup-multipart.c     leads to crash or  exit of process (CVE-2025-32914)

    * libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in libsoup     (CVE-2025-4948)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:8126 advisory.

    The libsoup packages provide an HTTP client and server library for GNOME.

    Security Fix(es):

    * libsoup: Heap buffer over-read in `skip_insignificant_space` when sniffing content (CVE-2025-2784)

    * libsoup: Denial of Service attack to websocket server (CVE-2025-32049)

    * libsoup: OOB Read on libsoup through function  soup_multipart_new_from_message in soup-multipart.c     leads to crash or  exit of process (CVE-2025-32914)

    * libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in libsoup     (CVE-2025-4948)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:8139 advisory.

    The libsoup packages provide an HTTP client and server library for GNOME.

    Security Fix(es):

    * libsoup: Heap buffer over-read in `skip_insignificant_space` when sniffing content (CVE-2025-2784)

    * libsoup: Denial of Service attack to websocket server (CVE-2025-32049)

    * libsoup: OOB Read on libsoup through function  soup_multipart_new_from_message in soup-multipart.c     leads to crash or  exit of process (CVE-2025-32914)

    * libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in libsoup     (CVE-2025-4948)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
237411	RHEL 8 : libsoup (RHSA-2025:8252)	Nessus	Red Hat Local Security Checks	high
237262	AlmaLinux 9 : libsoup (ALSA-2025:8126)	Nessus	Alma Linux Local Security Checks	high
237261	AlmaLinux 8 : libsoup (ALSA-2025:8132)	Nessus	Alma Linux Local Security Checks	high
237259	Oracle Linux 9 : libsoup (ELSA-2025-8126)	Nessus	Oracle Linux Local Security Checks	high
237258	Oracle Linux 8 : libsoup (ELSA-2025-8132)	Nessus	Oracle Linux Local Security Checks	high
237242	RHEL 9 : libsoup (RHSA-2025:8140)	Nessus	Red Hat Local Security Checks	high
237241	RHEL 8 : libsoup (RHSA-2025:8132)	Nessus	Red Hat Local Security Checks	high
237240	RHEL 9 : libsoup (RHSA-2025:8126)	Nessus	Red Hat Local Security Checks	high
237238	RHEL 9 : libsoup (RHSA-2025:8139)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2025-4948

high

Tenable Plugins

high

high

high

high

high

high

high

high

high