A flaw was found in libsoup’s WebSocket frame processing when handling incoming messages. If a non-default configuration is used where the maximum incoming payload size is unset, the library may read memory outside the intended bounds. This can cause unintended memory exposure or a crash. Applications using libsoup’s WebSocket support with this configuration may be impacted.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20354-1 advisory.

    - CVE-2025-4476: null pointer dereference may lead to denial of service (bsc#1243422).
    - CVE-2025-14523: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (bsc#1254876).
    - CVE-2025-32049: Denial of Service attack to websocket server (bsc#1240751).
    - CVE-2026-0716: improper bounds handling may allow out-of-bounds read (bsc#1256418).
    - CVE-2026-0719: stack-based buffer overflow in NTLM authentication can lead to arbitrary code execution     (bsc#1256399).
    - CVE-2026-1467: lack of input sanitization can lead to unintended or unauthorized HTTP requests     (bsc#1257398).
    - CVE-2026-1539: proxy authentication credentials leaked via the Proxy-Authorization header when handling     HTTP redirects       (bsc#1257441).
    - CVE-2026-1760: improper handling of HTTP requests combining certain headers by SoupServer can lead to     HTTP request       smuggling and potential DoS (bsc#1257597).
    - CVE-2026-2369: Buffer overread due to integer underflow when handling zero-length resources     (bsc#1258120).
    - CVE-2026-2443: out-of-bounds read when processing specially crafted HTTP Range headers can lead to heap     information       disclosure to remote attackers (bsc#1258170).
    - CVE-2026-2708: HTTP request smuggling via duplicate Content-Length headers (bsc#1258508).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0894-1 advisory.

    This update for libsoup fixes the following issue:

    - CVE-2026-0716: improper bounds handling may allow out-of-bounds read (bsc#1256418).

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

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0886-1 advisory.

    This update for libsoup2 fixes the following issue:

    - CVE-2026-0716: improper bounds handling may allow out-of-bounds read (bsc#1256418).

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

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

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0703-1 advisory.

    - CVE-2026-0716: improper bounds handling may allow out-of-bounds read (bsc#1256418).
    - CVE-2025-4476: null pointer dereference may lead to denial of service (bsc#1243422).
    - CVE-2025-32049: denial of Service attack to websocket server (bsc#1240751).
    - CVE-2026-2369: buffer overread due to integer underflow when handling zero-length resources     (bsc#1258120).
    - CVE-2026-2443: out-of-bounds read when processing specially crafted HTTP Range headers can lead to heap     information       disclosure to remote attackers (bsc#1258170).
    - CVE-2026-2708: HTTP request smuggling via duplicate Content-Length headers (bsc#1258508).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0574-1 advisory.

    - CVE-2026-1761: incorrect length calculation when parsing of multipart HTTP responses can lead to a     stack-based buffer overflow       (bsc#1257598).
    - CVE-2026-0716: improper bounds handling may allow out-of-bounds read (bsc#1256418).
    - CVE-2025-4476: null pointer dereference may lead to denial of service (bsc#1243422).

Tenable has extracted the preceding description block directly from the SUSE 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 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-07b73214fc advisory.

    Backport fixes for CVE-2026-0716, CVE-2026-0719.

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 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-44af0f2383 advisory.

    Backport fixes for CVE-2026-0716, CVE-2026-0719.

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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0497-1 advisory.

    - CVE-2026-1761: Check length of bytes read in soup_filter_input_stream_read_until to avoid a stack-based     buffer       overflow (bsc#1257598).
    - CVE-2026-0716: improper bounds handling may allow out-of-bounds read (bsc#1256418).
    - CVE-2025-4476: null pointer dereference may lead to denial of service (bsc#1243422).

Tenable has extracted the preceding description block directly from the SUSE 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 openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20142-1 advisory.

    - CVE-2025-11021: Fixed out-of-bounds read in Cookie Date Handling of libsoup HTTP Library (bsc#1250562).
    - CVE-2026-0719: Fixed stack-based buffer overflow in NTLM authentication can lead to arbitrary code     execution (bsc#1256399).
    - CVE-2026-0716: Fixed improper bounds handling may allow out-of-bounds read (bsc#1256418).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0211-1 advisory.

    - CVE-2025-14523: Reject duplicated Host in headers and followed upstream update (bsc#1254876).
    - CVE-2026-0716: Fixed out-of-bounds read for websocket (bsc#1256418)
    - CVE-2026-0719: Fixed overflow for password md4sum (bsc#1256399)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0257-1 advisory.

    - CVE-2026-0716: Fixed out-of-bounds read for websocket (bsc#1256418)
    - CVE-2026-0719: Fixed overflow for password md4sum (bsc#1256399)
    - CVE-2025-14523: Reject duplicated Host in headers and followed upstream update (bsc#1254876).

Tenable has extracted the preceding description block directly from the SUSE 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in libsoup's WebSocket frame processing when handling incoming messages. If a non-default     configuration is used where the maximum incoming payload size is unset, the library may read memory     outside the intended bounds. This can cause unintended memory exposure or a crash. Applications using     libsoup's WebSocket support with this configuration may be impacted. (CVE-2026-0716)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
302341	openSUSE 16 Security Update : libsoup2 (openSUSE-SU-2026:20354-1)	Nessus	SuSE Local Security Checks	high
302258	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libsoup (SUSE-SU-2026:0894-1)	Nessus	SuSE Local Security Checks	medium
302107	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libsoup2 (SUSE-SU-2026:0886-1)	Nessus	SuSE Local Security Checks	medium
300651	SUSE SLES12 Security Update : libsoup (SUSE-SU-2026:0703-1)	Nessus	SuSE Local Security Checks	medium
299577	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libsoup2 (SUSE-SU-2026:0574-1)	Nessus	SuSE Local Security Checks	medium
299375	Fedora 42 : mingw-libsoup (2026-07b73214fc)	Nessus	Fedora Local Security Checks	high
299366	Fedora 43 : mingw-libsoup (2026-44af0f2383)	Nessus	Fedora Local Security Checks	high
299060	SUSE SLES15 Security Update : libsoup2 (SUSE-SU-2026:0497-1)	Nessus	SuSE Local Security Checks	medium
297789	openSUSE 16 Security Update : libsoup (openSUSE-SU-2026:20142-1)	Nessus	SuSE Local Security Checks	high
296486	SUSE SLES15 Security Update : libsoup (SUSE-SU-2026:0211-1)	Nessus	SuSE Local Security Checks	high
296456	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libsoup (SUSE-SU-2026:0257-1)	Nessus	SuSE Local Security Checks	high
282521	Linux Distros Unpatched Vulnerability : CVE-2026-0716	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-0716

medium

Tenable Plugins

high

medium

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medium