A flaw was found in libsoup, where the soup_headers_parse_request() function may be vulnerable to an out-of-bound read. This flaw allows a malicious user to use a specially crafted HTTP request to crash the HTTP server.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-941 advisory.

    A flaw was found in libsoup. The package is vulnerable to a heap buffer over-read when sniffing content     via the skip_insight_whitespace() function. Libsoup clients may read one byte out-of-bounds in response to     a crafted HTTP response by an HTTP server. (CVE-2025-2784)

    A flaw was found in libsoup. The libsoup append_param_quoted() function may contain an overflow bug     resulting in a buffer under-read. (CVE-2025-32050)

    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). (CVE-2025-32051)

    A flaw was found in libsoup. A vulnerability in the sniff_unknown() function may lead to heap buffer over-     read. (CVE-2025-32052)

    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. (CVE-2025-32053)

    A flaw was found in libsoup, where the soup_headers_parse_request() function may be vulnerable to an out-     of-bound read. This flaw allows a malicious user to use a specially crafted HTTP request to crash the HTTP     server. (CVE-2025-32906)

    A flaw was found in libsoup. SoupContentSniffer may be vulnerable to a NULL pointer dereference in the     sniff_mp4 function. The HTTP server may cause the libsoup client to crash. (CVE-2025-32909)

    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. (CVE-2025-32910)

    libsoup: Double free on  soup_message_headers_get_content_disposition() through  soup-message-headers.c     via params GHashTable value (CVE-2025-32911)

    A flaw was found in libsoup, where SoupAuthDigest is vulnerable to a NULL pointer dereference. The HTTP     server may cause the libsoup client to crash. (CVE-2025-32912)

    A flaw was found in libsoup, where the soup_message_headers_get_content_disposition() function is     vulnerable to a NULL pointer dereference. This flaw allows a malicious HTTP peer to crash a libsoup client     or server that uses this function. (CVE-2025-32913)

Tenable has extracted the preceding description block directly from the tested product 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 Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4140 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4140-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                   Andreas Henriksson     April 27, 2025                                https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : libsoup2.4     Version        : 2.72.0-2+deb11u2     CVE ID         : CVE-2025-2784 CVE-2025-32050 CVE-2025-32052 CVE-2025-32053                      CVE-2025-32906 CVE-2025-32909 CVE-2025-32910 CVE-2025-32911                      CVE-2025-32912 CVE-2025-32913 CVE-2025-32914     Debian Bug     : 1091502 1102208 1102212 1102214 1102215 1103521 1103517                      1103516 1103515 1103267 1103512

    Several security vulnerabilities have been discovered in libsoup2.4, a http     client/server library popularly used in GNOME, et.al.

    CVE-2025-2784

        The package is vulnerable to a heap buffer over-read when sniffing content         via the skip_insight_whitespace() function. Libsoup clients may read one         byte out-of-bounds in response to a crafted HTTP response by an HTTP         server.

    CVE-2025-32050

        The libsoup append_param_quoted() function may contain an overflow bug         resulting in a buffer under-read.

    CVE-2025-32052

        A vulnerability in the sniff_unknown() function may lead to heap buffer         over-read.

    CVE-2025-32053

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

    CVE-2025-32906

        The soup_headers_parse_request() function may be vulnerable to an         out-of-bound read. This flaw allows a malicious user to use a specially         crafted HTTP request to crash the HTTP server.

    CVE-2025-32909

        SoupContentSniffer may be vulnerable to a NULL pointer dereference in the         sniff_mp4 function. The HTTP server may cause the libsoup client to crash.

    CVE-2025-32910

        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.

    CVE-2025-32911

        Vulnerable to a use-after-free memory issue not on the heap in the         soup_message_headers_get_content_disposition() function.
        This flaw allows a malicious HTTP client to cause memory corruption in the         libsoup server.

    CVE-2025-32912

        SoupAuthDigest is vulnerable to a NULL pointer dereference. The HTTP server         may cause the libsoup client to crash.

    CVE-2025-32913

        The soup_message_headers_get_content_disposition() function is vulnerable         to a NULL pointer dereference. This flaw allows a malicious HTTP peer to         crash a libsoup client or server that uses this function.

    CVE-2025-32914

        The soup_multipart_new_from_message() function is vulnerable to an         out-of-bounds read. This flaw allows a malicious HTTP client to induce the         libsoup server to read out of bounds.

    Additionally this update also includes a fix to extend the lifetime     of a certificate used by the test-suite during build to avoid     expiring soon.

    Note that this update does *not* yet address CVE-2025-32907 and CVE-2025-32049     which are still being discussed.

    For Debian 11 bullseye, these problems have been fixed in version     2.72.0-2+deb11u2.

    We recommend that you upgrade your libsoup2.4 packages.

    For the detailed security status of libsoup2.4 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libsoup2.4

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian 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 Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-67e824b908 advisory.

    Backport fixes for CVE-2025-32910, CVE-2025-32911, CVE-2025-32913

    ----

    Backport fixes for CVE-2025-32050 CVE-2025-32052 CVE-2025-32053 CVE-2025-32906       CVE-2025-32907 CVE-2025-32909

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-bd12d23d21 advisory.

    Backport fixes for CVE-2025-32910, CVE-2025-32911, CVE-2025-32913

    ----

    Backport fixes for CVE-2025-32050 CVE-2025-32052 CVE-2025-32053 CVE-2025-32906       CVE-2025-32907 CVE-2025-32909

Tenable has extracted the preceding description block directly from the Fedora 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 version of libsoup installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-32906 advisory.

  - A flaw was found in libsoup, where the soup_headers_parse_request() function May be vulnerable to an out-     of-bound read. This flaw allows a malicious user to use a specially crafted HTTP request to crash the HTTP     server. (CVE-2025-32906)

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

The version of libsoup installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-32906 advisory.

  - A flaw was found in libsoup, where the soup_headers_parse_request() function May be vulnerable to an out-     of-bound read. This flaw allows a malicious user to use a specially crafted HTTP request to crash the HTTP     server. (CVE-2025-32906)

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

ID	Name	Product	Family	Severity
234952	Amazon Linux 2023 : libsoup3, libsoup3-devel (ALAS2023-2025-941)	Nessus	Amazon Linux Local Security Checks	high
234885	Debian dla-4140 : gir1.2-soup-2.4 - security update	Nessus	Debian Local Security Checks	critical
234834	Fedora 40 : mingw-libsoup (2025-67e824b908)	Nessus	Fedora Local Security Checks	critical
234832	Fedora 41 : mingw-libsoup (2025-bd12d23d21)	Nessus	Fedora Local Security Checks	critical
234789	Azure Linux 3.0 Security Update: libsoup (CVE-2025-32906)	Nessus	Azure Linux Local Security Checks	high
234738	CBL Mariner 2.0 Security Update: libsoup (CVE-2025-32906)	Nessus	MarinerOS Local Security Checks	high

Detections

Analytics

CVE-2025-32906

high

Tenable Plugins

high

critical

critical

critical

high

high